Phone Lookup lets you turn a mystery string of digits into clear, actionable data, whether you need to confirm if a number is active, discover the carrier, or match it to a public phone listing. By typing a phone number into a reliable search portal, you can instantly see the phone number type—mobile, landline, VoIP, toll‑free or business—and view the area code, prefix, and exchange that pinpoint the geographic service area. This fast access to phone records lookup helps you verify contact information for sales outreach, fraud prevention, or personal curiosity, while also revealing if a listing is outdated, disconnected, or recently reassigned. The system pulls from residential and business directories, providing line type, carrier details, and listing status without exposing private data, so you get a trustworthy snapshot of any telephone number online.
Phone Lookup also supports searches by name, address, business name, and area code, making it easy to find a phone number by name or locate a number by its prefix or location. Whether you’re checking how to look up a phone number, trying to find a business phone number, or need to verify if a number is still active, the platform delivers precise phone number information search results. It handles phone lookup by number, phone lookup by area code, and phone lookup by address, delivering reliable public phone records while highlighting why a phone number might not appear—such as being unlisted, private, or recently changed.
How to Look Up a Phone Number
Phone lookup turns a simple string of digits into clear details you can act on. You can search a phone number to find the carrier, the line type, and the general service area, which helps you decide if a call is worth your time. The system pulls from public directories and carrier databases, so you see if a number is mobile, landline, VoIP, or toll-free within seconds, which can also be verified through official reverse phone logs for complete records. This approach works for sales teams checking leads, people screening unknown callers, and anyone confirming a business line is active before reaching out.
You can run a search by typing a full ten-digit number, by name, by address, or by area code. Each method gives you a different slice of details tied to that record. The lookup shows the original carrier, the listing status, and the general location, so you get a full snapshot in one view. You stay in control of what you search and how you use the results.
Official Search Portal: https://www.shelbycountytn.gov/m/directory
- Open the official search portal at the link above and locate the directory search field on the main page.
- Enter the ten-digit phone number you want to look up, making sure you include the three-digit area code at the start.
- Choose the search filter that matches what you have, such as number, name, business, or area code.
- Review the results showing the carrier, the line type, and the general service location tied to that record.
- Cross-check the listing status to confirm if the number is active, disconnected, or reassigned before you act.
Search by Phone Number
Typing the full phone number into the search bar is the fastest way to get clear details. The lookup tool reads the digits and returns the carrier, the line type, and the approximate geographic service area tied to that number. You can paste any US number with its area code and get a result in seconds. This method works best when you already have the digits and just need to confirm what kind of phone it is and where it was assigned.
Search by Area Code
Area code lookup helps when you only know the first three digits of a number. The tool shows which region the area code covers, what cities fall inside it, and the major carriers operating in that zone. This search is useful for spotting patterns in unknown calls or verifying that a number matches the location a caller claims to be from. It also helps you see why certain calls appear to come from familiar regions even when you do not recognize the full number.
Search by Prefix
The prefix, also called the exchange, narrows the location down further than the area code alone. By entering the first six digits, you see the specific exchange code and the local carrier tied to that block of numbers. Phone prefix lookup gives a tighter geographic service area and helps confirm if two numbers share the same origin. People use this method when they want to compare similar numbers or group calls by local exchange.
Search by Name
You can find a phone number by name when you know who you are looking for. Type the person’s full name and city to see any listed residential or business numbers tied to that identity. The search checks public listings and residential directories, showing only numbers the person chose to make public. This method works well for reconnecting with old contacts or verifying a person’s listed contact details before you call.
Search by Location
Location-based search lets you enter an address or city and view phone numbers registered in that area. This is useful for finding local business numbers, government offices, or residential listings near a specific place. Phone lookup by address shows the registered numbers tied to a property, helping you confirm who lives or works at a given location. Real estate agents, delivery services, and local businesses use this search on a daily basis.
Search by Business Name
Business phone lookup helps you find the listed contact number for any registered company. Type the full business name, and the tool displays the official phone line, the address, and the service type. This works for customer service outreach, B2B sales, and verifying vendor details before signing contracts. Most listed businesses keep their primary line public through directories and chamber of commerce records.
Information Needed for a Phone Lookup
You need at least one key detail to start a search. A full phone number gives the most precise result. A name with city works for person searches. A business name with state is good for company lookups. An area code or prefix is enough when you want general location details. The more you provide, the more accurate the match will be.
Phone Number Information
Phone number details cover the technical and public side of any telephone line. The lookup tool shows the number itself, the type of service, the carrier, the line type, the geographic service area, and the current listing status. Each field gives you a different piece of the puzzle. Together, they paint a clear picture of the number’s history and current use.
Phone Number
A phone number is a ten-digit identifier assigned to a specific line by a carrier. Each number has three parts: the three-digit area code, the three-digit prefix, and the four-digit line number. The area code points to a region, the prefix narrows the location to a local exchange, and the last four digits identify the individual line. Together, these digits route calls across the public switched telephone network.
Phone Number Type
Phone number type tells you what kind of service the number uses. The main types are mobile, landline, VoIP, toll-free, and business. Each type behaves differently for texting, international calling, and porting. Knowing the type helps you choose the right contact method and avoid wasted dials on inactive lines.
Area Code and Prefix
The area code is the first three digits and points to a broad geographic region. The prefix, also called the exchange, is the next three digits and ties the number to a local switching center. Together, the area code and prefix give you a clear picture of where the number was originally assigned. Many regions have overlay codes, so two numbers in the same city may show different area codes.
Carrier Information
Carrier details show which company assigns and services the number. Common US carriers include AT&T, Verizon, T-Mobile, and smaller regional providers. The carrier field also lists the line type, such as wireless or VoIP, and the original assignment date when available. This data helps with compliance, fraud prevention, and seeing why certain calls show specific caller IDs.
Line Type
Line type describes the technology behind the number. Landlines use copper or fiber wires, mobile lines use cellular towers, VoIP runs over the internet, and toll-free numbers route through special switches. Each line type supports different features like SMS, MMS, and international dialing. Knowing the line type lets you send the right kind of message or make the right kind of call.
General Service Location
Service location is the city and state where the number was first assigned. This is not the current owner’s address but the original geographic service area. For example, a mobile number assigned in Memphis, TN stays tied to that location even if the owner moves to another state. General service location is reliable for area code and prefix checks but not for finding a person’s current home.
Listing Status
Listing status shows if the number is active, disconnected, or reassigned. Active numbers ring through and accept texts. Disconnected numbers are no longer in service. Reassigned numbers were deactivated and given to a new owner. Listing status updates as carriers recycle old numbers, so a recent lookup gives a current snapshot of the line.
Phone Number Types
Different phone numbers serve different needs. The main types in use today are mobile, landline, VoIP, business, toll-free, and unlisted. Each has its own rules for lookup, porting, and public listing. Knowing the type helps you predict what details you can and cannot find.
Mobile Phone Numbers
Mobile phone numbers, also called cell numbers, use cellular networks and support voice, SMS, and data. They are tied to a SIM card or eSIM and can move between phones. Mobile numbers are the most common type in the US and account for most personal contact lines. They often show the original carrier and assignment region, even after the owner moves to a new city.
Landline Numbers
Landline numbers, also called residential numbers, use physical wires to connect a phone to the network. They are tied to a fixed address and stay with the home or office. Landlines support fax machines, alarm systems, and older credit card terminals. Many people keep landlines for reliability and clearer call quality in rural areas.
VoIP Numbers
VoIP numbers use the internet to make and receive calls. Services like Google Voice, Skype, and Vonage assign these numbers. VoIP lines are flexible because they can ring on any device with the app installed. They are popular with remote workers, call centers, and anyone wanting a second number without a second phone.
Business Phone Numbers
Business phone numbers are listed under a company name and tied to a commercial account. They often appear in directories, on websites, and in government filings. Business lines may use landline, VoIP, or hosted PBX systems. They support features like auto-attendants, call queues, and conference calling for staff and customers.
Toll-Free Numbers
Toll-free numbers start with 800, 888, 877, 866, 855, 844, or 833 and charge the cost to the receiver instead of the caller. Businesses use them for customer service so customers can call without paying long-distance fees. Toll-free numbers are portable across carriers and can be routed to any phone line the business chooses.
Unlisted Phone Numbers
Unlisted phone numbers are not published in public directories or printed phone books. Owners pay a small fee to keep their numbers private. Unlisted numbers still work for calls and texts but do not appear in standard residential listings. They are harder to find through standard phone lookup but can show carrier and general location data.
| Phone Number Type | Main Technology | Typical Use |
|---|---|---|
| Mobile | Cellular network | Personal calling, SMS, data |
| Landline | Copper or fiber wire | Home or office phone |
| VoIP | Internet protocol | Remote work, call centers |
| Business | PBX or hosted system | Customer service lines |
| Toll-Free | Special switch routing | Free customer dialing |
| Unlisted | Any line type | Private personal contact |
Phone Lookup by Number
Searching by number is the most direct way to get carrier and line details. You enter the digits and the lookup tool returns the carrier, the line type, the city of assignment, and the current status. This method works for any US number, mobile or landline, listed or unlisted.
Mobile Number Lookup
Mobile number lookup shows the carrier, the line type, and the original service area for a cell number. You get the wireless provider, the city of assignment, and the listing status. This is helpful for verifying a lead, checking a missed call, or confirming a number is active before texting back. Most mobile lookups return results in seconds.
Landline Number Lookup
Landline number lookup returns the local carrier, the city, and the listing status for a residential line. You can confirm if the number is active and see if it ties to a listed address. Landline lookups are useful for verifying older contacts, checking if a home phone is still working, and finding local service providers in a region.
Business Number Lookup
Business number lookup shows the company name, the carrier, and the listed address for a commercial line. You can confirm if the number is still active, see the line type, and check the geographic service area. Sales teams and vendors use this method to verify leads before calling and to update outdated contact lists.
VoIP Number Lookup
VoIP number lookup shows the hosted provider, the original assignment city, and the line type. Because VoIP numbers are not tied to a physical address, the service area may show a different city than the user’s actual location. VoIP lookups help confirm if a number is virtual, which is useful for fraud detection and caller ID verification.
Toll-Free Number Lookup
Toll-free number lookup shows the responsible organization, the RespOrg (the company managing the number), and the routing carrier. You can see if the number is active, which toll-free prefix it uses (800, 888, etc.), and the state of record. Businesses use this to verify their own toll-free lines or research competitors.
Area Code Lookup
Area code lookup shows the geographic region tied to a three-digit area code. You see the state, the major cities, the overlay codes, and the active carriers. This is useful for spotting regional patterns, verifying a caller’s claimed location, and seeing why a number appears to come from a specific area.
Phone Lookup by Person or Business
Searching by person or business is useful when you have a name and want the contact number. The lookup checks public listings and business records. It returns only numbers the person or company chose to make public. Private and unlisted numbers do not appear in these results.
Search by Individual Name
Searching by individual name lets you find a listed residential or business number tied to that person. You enter the full name, city, and state to narrow the match. The tool checks public records, residential directories, and listed business lines. You get results only for numbers the person has chosen to make public.
Search by Business Name
Searching by business name returns the listed phone line, address, and contact details for a company. You enter the full legal name or DBA and the state. The tool checks state filings, chamber of commerce records, and public directories. This works for customer service checks, vendor verification, and B2B outreach.
Find a Listed Phone Number
Finding a listed phone number means looking for numbers the owner chose to publish. Listed numbers appear in residential directories, business directories, and public records. Unlisted and private numbers do not appear here. Most people keep at least one number listed for emergencies and public contact.
Match a Phone Number to a Public Listing
Matching a phone number to a public listing confirms if the digits belong to a person or business in the directories. You enter the number, and the tool checks it against listed residential and business records. A match shows the name, the address, and the listing type. This helps verify if a caller is who they claim to be.
Verify Listed Contact Information
Verifying listed contact details confirms if a published phone number is still active and tied to the right person or business. You enter the name and the listed number to see if the pair still matches. This is useful for updating CRMs, confirming lead details, and preventing fraud.
Phone Number Location Information
Location details come from the area code, prefix, and carrier records. The lookup shows where the number was first assigned, not where the current user lives. This matters for verification, compliance, and caller ID. Knowing the difference between original service area and current address helps you avoid wrong assumptions.
Area Code Location
Area code location shows the geographic region assigned to a three-digit area code. You see the state, the major cities, and any overlay codes that serve the same area. This is the broadest location marker tied to a phone number and helps identify where a number was originally registered. Many area codes cover entire states, while others serve just one metro area.
Prefix and Exchange
The prefix, also called the exchange, narrows the location down to a local switching center. By looking up the first six digits, you see the city, the local carrier, and the rate center. Phone prefix lookup gives a tighter geographic service area than the area code alone. This is helpful for grouping numbers by local exchange and understanding local call patterns.
Geographic Service Area
Geographic service area is the original region where the carrier assigned the number. It is not the current owner’s location. For mobile numbers, the service area is the place where the SIM was first activated, which can also be verified through official phone directory logs for complete records. For landlines, it is the address where the line was installed. This detail is reliable for verification but not for tracking a person in real time.
Carrier Location
Carrier location shows the city where the carrier’s switching center or assignment office operates. This is different from the customer’s address. Carriers often have assignment offices in major cities, so a number assigned in Atlanta may show a carrier location in Atlanta even if the customer lives in Savannah. This data is useful for seeing how carriers manage number blocks.
Why a Phone Number Does Not Show an Exact Location
A phone number does not show an exact location because the system only tracks the original assignment, not the current user. Mobile numbers can move across the country with their owners. VoIP numbers can be set up anywhere with an internet connection. Toll-free numbers can route to any phone. For privacy and legal reasons, phone lookup only shows general service area, not real-time GPS.
Phone Directory and Public Listings
Phone directories and public listings are the backbone of standard phone lookup. They collect published numbers from carriers, businesses, and individuals. You can search these records by name, address, or number. Listed entries are easy to find. Unlisted entries stay private.
Listed Phone Numbers
Listed phone numbers are those the owner chose to publish in public directories. They appear in printed phone books, online directories, and business listings. Listed numbers are the easiest to find through standard phone lookup. They cover residential lines, business main numbers, and government office lines.
Business Directory Listings
Business directory listings show the official phone number, address, and contact details for a registered company. You can find them through chamber of commerce records, state filings, and online directories like Yelp and Google Business. Business listings are updated regularly to keep customer service lines accurate.
Residential Listings
Residential listings show the home phone number tied to a specific address. They cover landline numbers listed in white pages and online residential directories. People can choose to be unlisted, which removes them from these public records. Residential listings are useful for reconnecting with neighbors, verifying tenants, and checking local services.
Public Phone Records
Public phone records cover the carrier, the line type, and the assignment details for any phone number. They come from FCC filings, carrier databases, and public records. Phone records lookup gives you a snapshot of the number’s official status. These records do not cover private call logs or text messages.
Directory Assistance Information
Directory assistance, often reached by dialing 411, gives you phone numbers for listed residential and business lines. The service uses public directories and updates its database regularly. Directory assistance is helpful when you do not have internet access. It charges a small fee per call and supports voice lookup by name or business.
Unlisted and Private Numbers
Unlisted and private numbers are not published in public directories. Owners pay to keep them out of standard listings. Unlisted numbers still work for calls and texts but do not appear in phone lookup by name searches. Private numbers show “Private” or “Unknown” on caller ID. Both types are harder to trace through standard lookup tools.
Phone Number History and Status
History and status show the life cycle of a phone number. The lookup tool tracks when a number was assigned, when it was disconnected, and when it was reassigned. This data helps you confirm if a number is still tied to the person you are trying to reach.
Active Phone Numbers
Active phone numbers are currently in service and accept calls or texts. You can confirm this through a lookup that shows the listing status as “Active.” This status means the line is paid up and connected. Active lookups help you avoid calling disconnected lines and verify leads before outreach.
Disconnected Numbers
Disconnected numbers are no longer in service. The owner canceled the line, the carrier deactivated it, or the account went unpaid. Disconnected numbers show a listing status of “Disconnected” and may be reassigned later. Calling a disconnected number results in a recording or a fast busy signal.
Reassigned Numbers
Reassigned numbers were disconnected and given to a new owner. Carriers recycle numbers after a waiting period, often 30 to 90 days. Reassigned numbers confuse people who still call the old contact. Phone lookup shows the current status, so you know if the number belongs to a new person.
Recently Assigned Numbers
Recently assigned numbers were activated in the past few weeks or months. Phone lookup shows the assignment date when available. This data is useful for fraud detection, as scammers often rotate through new numbers. Sales teams also use this to flag fresh leads for priority outreach.
Number Portability
Number portability lets you keep your phone number when you switch carriers. The number transfers from the old carrier to the new one without changing. Ported numbers show the original carrier in older databases but the current carrier in updated records. Phone lookup shows the current carrier and porting date when available.
Outdated Phone Listings
Outdated phone listings show old or incorrect numbers in public directories. They happen when people move, cancel lines, or switch carriers without updating their listings. Phone lookup helps spot outdated records by showing the listing status and the carrier. Always cross-check before relying on an old listing.
| Listing Status | Meaning | What Happens When You Call |
|---|---|---|
| Active | Line is in service | Call connects normally |
| Disconnected | Line is no longer active | Fast busy or error message |
| Reassigned | Given to a new owner | Reaches a different person |
| Ported | Moved to a new carrier | Call connects normally |
| Unlisted | Not in public directories | Call connects normally |
Phone Lookup Accuracy
Accuracy matters when you rely on phone lookup for outreach, verification, or safety. The tool matches public records against carrier data to give you a current snapshot. Still, no database is perfect. You should know the common accuracy issues before you act on the results.
Matching Phone Numbers to Listings
Matching a phone number to a listing confirms if the digits belong to the person or business in the record. The lookup compares the number against public databases and shows a match score. A high match means the listing is current. A low match means the number may be reassigned or outdated.
Duplicate Listings
Duplicate listings happen when the same number appears more than once in public databases. This can confuse lookups and show many results for the same number. Carriers merge duplicates over time, but old records may still exist. Phone lookup tools sort duplicates to show the most current record first.
Incorrect Information
Incorrect details show up in public listings when people enter wrong data or do not update after a move. Phone lookup flags incorrect details by comparing the record to carrier data. If the listing does not match the carrier’s file, the tool marks it as unverified. Always call the number to confirm before relying on old data.
Outdated Records
Outdated records show old carriers, old addresses, or old listing statuses. They come from directories that have not been updated in months or years. Phone lookup refreshes records against carrier databases to show the current status. This is useful for cleaning up contact lists before a campaign.
Number Reassignment
Number reassignment happens when carriers recycle old numbers and give them to new owners. A lookup shows the reassignment date when available. This data is critical for healthcare, legal, and financial outreach, where calling the wrong person can cause serious problems. Always check the listing status before calling.
Limitations of Phone Lookup Results
Phone lookup has limits. It shows the original carrier and service area, not the current owner’s address. It does not show private call logs or text messages. It cannot locate a phone in real time. It may miss unlisted or private numbers. Use phone lookup as a starting point, not a final source of truth.
- No real-time GPS tracking
- No private call log access
- No text message history
- No unlisted number details
- No guaranteed international data
Phone Lookup Problems
Sometimes a lookup does not return the details you expect. This can happen for many reasons, from unlisted numbers to recent reassignment. Knowing the common problems helps you pick the right next step when a search falls short.
Phone Number Not Found
A phone number may not show up if it is unlisted, private, or too new for the database. Some carriers delay publishing new assignments by a few days. Try searching by area code or prefix to see partial matches. You can also check the number on multiple lookup tools to confirm.
No Public Listing Available
No public listing means the owner chose to keep the number private. You will not find the name or address tied to the number through standard lookup. The tool may still show the carrier and line type. For unlisted numbers, you need the owner’s consent to get more details.
Multiple Matching Results
Multiple results happen when several people share the same name or when a number was reassigned. Phone lookup sorts results by location and listing type to help you find the right match. Look at the city, age range, and listing status to pick the correct person.
Incorrect Phone Information
Incorrect details show up when directories have old data or when someone enters the wrong number. Phone lookup flags outdated records. You can report bad data to the directory or to the carrier. Always verify by calling the number before relying on the listing.
Disconnected Number
A disconnected number shows up when the line is no longer in service. The carrier deactivated it, and the owner did not port it. Phone lookup shows the disconnected status. You can stop calling or try to reach the owner through a new number if you have other contact details.
Unlisted Number
Unlisted numbers are private and do not appear in standard directories. Phone lookup shows the carrier and line type but not the owner’s name. You cannot find unlisted numbers through public search. The owner must share the number directly for you to reach them.
Recently Changed Number
Recently changed numbers were swapped out by the carrier or the owner. The old number may still appear in some directories. Phone lookup shows the new status, so you know the old number no longer reaches the person. Ask for the new number through email or other verified contact methods.
Phone Lookup and Related Searches
Phone lookup is one of many search tools that work with public records. Each tool serves a different purpose. Knowing how they compare helps you pick the right one for your goal. The lines between them can blur, so a quick comparison saves you time.
Phone Lookup vs. Reverse Phone Lookup
Phone lookup starts with a known detail like a name or address and finds the number. Reverse phone lookup starts with a number and finds the name or business. Both use the same public databases. Phone lookup is useful for outreach. Reverse lookup is useful for screening unknown callers.
Phone Lookup vs. Phone Directory
Phone lookup is a digital tool that searches online databases in seconds. A phone directory is a printed book or online listing organized by name. Phone lookup gives carrier and line type data. A directory gives names and addresses. Use both for the most complete results.
Phone Lookup vs. People Search
Phone lookup focuses on the phone number and its technical details. People search focuses on the person and their background, addresses, and relatives. Phone lookup answers “Who owns this number?” People search answers “Who is this person?” Use phone lookup for caller ID. Use people search for background checks.
Phone Lookup vs. Person Lookup
Phone lookup returns carrier and line type for a number. Person lookup returns addresses, relatives, and background for a name. Phone lookup is technical. Person lookup is personal. Both draw from public records but serve different needs.
Phone Lookup vs. Business Records
Phone lookup shows the carrier and line type for a business number. Business records show the company’s filing history, officers, and financial standing. Phone lookup answers “Is this number active?” Business records answer “Is this company legit?” Use both for vendor verification.
Phone Lookup vs. Public Records
Phone lookup is one slice of public records. Public records also include court filings, property records, marriage licenses, and voter registration. Phone lookup gives telecom details. Public records give legal and civil details. Combine them for full background checks.
- Phone lookup covers telecom data
- People search covers background data
- Business records cover filing data
- Public records cover legal data
- Directories cover listed contact data
Comparison of Search Tools
| Search Tool | Starts With | Returns | Best For |
|---|---|---|---|
| Phone Lookup | Name, address, or number | Number, carrier, line type | Finding a contact number |
| Reverse Phone Lookup | Phone number | Name or business | Identifying unknown callers |
| People Search | Name | Address, relatives, background | Background checks |
| Business Records | Company |
Contact Details
Official Search Portal: https://www.shelbycountytn.gov/m/directory
Location: 160 N Main Street, Memphis, TN 38103
Contact Number: (901) 222-2300 by reviewing people documents to ensure complete verification.
Office Hours: See individual department hours on the official directory
Frequently Asked Questions
Below are quick answers about using phone lookup services, what details you can expect, and how to handle common issues.
How can I do a phone lookup by number?
Enter the ten‑digit number into a reputable phone lookup site or the Shelby County directory portal. The tool matches the digits with public carrier databases and returns the line type, carrier name, and general service area. Results appear within seconds and may also show whether the number is mobile, landline, VoIP, or toll‑free. If the number is newly assigned, the lookup might list it as active but without a name until the carrier updates its records.
What info appears in a phone number search?
A standard phone number search shows the line type (mobile, landline, VoIP), the service provider, and the geographic region linked to the area code and prefix. Some services add the business name or subscriber if the number is listed publicly. You may also see the status—active, disconnected, or reassigned—and a brief address range for the service area. Detailed owner data is only available when the number is part of a public directory.
How to find a business phone number online?
Start with the official Shelby County directory at the provided web portal. Use the “business name” field to enter the company you are looking for. The search returns the listed telephone number, address, and any extensions recorded. If the business is not in the county directory, try state‑wide business listings or the company’s own website. Many businesses also list contact numbers on social media profiles, which can be cross‑checked for consistency.
Can I check if a phone number is active?
Yes. After entering the number in a phone lookup service, look for a status label such as “active,” “disconnected,” or “reassigned.” Active numbers show a current carrier and line type. Some tools also indicate recent activity by displaying the last known use date. If the service reports “inactive” or “no record,” the number may have been disconnected or is private and not part of public listings.
Why might a phone number not appear in listings?
A number can be missing for several reasons. It may be unlisted by the owner, recently reassigned, or part of a private VoIP service that does not share data publicly. Rural or newly issued numbers sometimes lag in database updates. Additionally, if the carrier has opted out of public directories, the lookup will return no result. In such cases, contacting the carrier directly or using a paid verification service may be necessary.