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Identify Landline vs Cell Phone, Carrier and Active vs Disconnected

New: The Processing Starts Immediately. Use Batch Dashboard to Monitor the Progress.
Upload TEXT, CSV or Excel file with Phone Numbers to get started
After uploading your file, you will specify the column with the phone numbers and select the processing service option (see below). You will need to either login or create an account, pay, and when processing is complete, download your results.
Verify Phone Number TypeAvailable Services:

Standard Line Type and Carrier
95% accuracy* for line type [details]
The most affordable and popular service to identify line type. The data is updated monthly. This service does not check for line number portability (LNP) and will report the original carrier and line type. Since vast majority of number porting requests is from one cell phone carrier to another, line type accuracy is reasonably high. Download a Sample Report Here
* Line type accuracy is for Landline vs Cell Phone. Some VoIP numbers may be reported as Landlines.

Advanced Line Type and Carrier
Real-time LNP lookup, 99.9% accurate* [details]
The best choice, if you need a near 100% accuracy for line type and the current carrier. Our Advanced Service does a real-time LNP check (Local Number Portability) to verify if the number was moved (ported) to a new phone company. This service will report new carrier, line type and the exact porting date, even if the number was ported today! Mobile phone numbers will also include the SMS/MMS email address (giving you the ability to email text or media messages). Download a Sample Report Here
* Line type accuracy is for Landline vs Cell Phone. Some VoIP numbers may be reported as Landlines.

Active Phone Number
Check if line is Active + Advanced service [details]
This service includes everything from the Advanced Line Type (LNP) service above, plus it checks if the numbers in your list are Active or Disconnected. We perform real-time check of billing phone information records and use proprietary advanced search methods to verify line status. The accuracy is 95%. This service often includes a billing name for active landline numbers. Download a Sample Report Here

Note: Free Business Account is required for ongoing batch processing. You will be able to process your first file with a quick registration. Before uploading your next file, please do not forget to upgrade your new account from Personal to Business.

Estimate your costs

Help and Instructions

  • Text (*.txt, *.csv) and Excel (*.xlsx) files can be uploaded.
  • Your file can contain up to 20 columns in any order.
  • The phone number can be in any column and can be in any format (7604547301, 760-454-7301, (760) 454-7301, 17604547301, etc).
  • Columns can be separated by tab, comma or pipe (|). Unix, PC and Mac files are supported.
  • Your file can have a header row with column titles or not have it.
  • Please remove any blank lines from the file to avoid unexpected results.
  • We do not check for duplicates or rows that contain invalid records. You are charged for each row of submitted data. Please remove duplicates and clean up data before processing if you do not wish to be charged for them.
  • There is no limit on number of records. You can upload files with thousands or even millions of records. For large files, you will be able to schedule processing and get notified by email when processing is complete.

    The results will be returned in a CSV (comma-separated values) text file. You can open CSV files with Excel. The file will contain all your original data with new columns added at the end. See below on what's included for each service and field descriptions.

      Standard Advanced Active Phone Number
    Line Status    
    Billing Name    
    Line Type
    Date Ported  
    SMS Email*  
    Time Zone
    Sample Results Download Download Download

  • Line Status. Using Real-time verification in carrier billing systems and other advanced proprietary methods the following statuses are reported
    • ACTIVE - Phone number with active billing status
    • INACTIVE - Disconnected phone number
    • INVALID - Phone number does not exist (e.g. invalid area code or not issued)
    • UNKNOWN - Status cannot determined

  • Billing Name. For active landline numbers, billing name may be provided
  • Line Type. Identifies how phone is connected to the network. For the Standard service it's the line type of the orginal carrier. The accuracy is still close to 95%, as vast majority of phone numbers have been transferred from one mobile carrier to another, keeping the line type unchanged. Carrier reported by Advanced and Active Phone Number services is 99.9% accurate.
    • LANDLINE - Wired home or business phone number
    • CELLULAR - Wireless mobile phone number
    • VOIP - Landline number leased to a Voice over IP provider
    • UNKNOWN - Invalid or not yet issued phone number

  • OCN. Operating Company Number (Carrier ID)
  • Carrier. Phone company (local exchange carrier) name. For the Standard service it's the original carrier (about 60% accurate due to number portability). Advanced and Active Phone Number services are 90% accurate, since porting is checked. Name discrepancy can occur when one carrier was acquired by another. For VOIP, will not see Vonage, Ooma, Google Voice or Skype, but rather a LANLINE carrier (e.g.,, Level 3 Communications) that has leased a range of its phone numbers to a VoIP carrier.
  • Date Ported. Date and time when phone number was last ported. We can report porting that occurred TODAY!
  • SMS Email*. For active cell phone numbers, SMS email (e.g. is provided
  • Location. Rate Center and/or Central Office location. It can be city name (SEATTLE), city abbreviation (NEWPORTBCH) or code (NWYRCYZN01)
  • State. 2-letter code for US State or Canadian Province
  • Time Zone. Time Zone of the phone number location (e.g. Eastern Daylight Time).
  • *Sending SMS or MMS email to Mobile Numbers. This is the simplest way to send text messages from the Internet or from your computer to mobile phones. These email addresses essentially act as a direct link to a carriers SMS gateway. Keep in mind that the length of an SMS email should be kept to fewer than 160 characters. If you are sending MMS there is typically no character limit, however, large files may be rejected by the carrier. While SearchBug provides this information with our Advanced Line Type Service and Active Phone Number Check, you, the end user, should have customer consent to avoid any FCC regulation infractions such as TCPA.

    SMS (Short Message Service) and MMS (Multimedia Messaging Service) are both used in mobile phones for non-voice communications. SMS is typically used to send text, while MMS is typically used to send images, music, animations, or other interactive documents, or files.

    Here is the overview of the next steps:

  • Define Columns. We will show a preview of the uploaded file, where you will tell us which column contains phone numbers.
  • Select Service Option and Submit Your Order. You will have a chance to review phone verification options (standard, advanced or active phone number) and select one. We will show the processing cost, based on selected service and record count. Estimated time to process will also be displayed.
  • Payment. This step a bit different for existing or new users.
    • Existing users with a regular Pay-As-You-Go account: Your saved credit card will be authorized for the shown amount. After your file is complete, we will use that authorization to charge your card.
    • Existing users with a Prepaid account: Your account balance will be used for the full payment.
    • New Users will be asked to sign up and provide a credit card. It's a quick one-page registration process. Our system will authorize your credit card and charge it when your results are ready. Some new accounts may be put on hold for a verbal verification process. If your account is on hold and the timing of your results are critical, please call our office at (800) 990-2939 during business hours.

  • Processing. If payment is successful and your account is in good standing, the processing will start immedeatly. You can close your browser or use other SearchBug tools. You will receive email when file is ready. The new Batch Dashboard will allow you to monitor the progress and see details on all your recent batches.
  • Download Results. We will send you an email with a link to download the results, when ready. The output files can be found in My Account > Reports and the Batch Dashboard.

  • Carrier billing systems
  • Real-time number portability check
  • Specialized telecommunication databases and live sources
  • North American Numbering Plan Administration
  • Canadian Numbering Administrator
  • SearchBug proprietary data and methods

Cost is based on number of records in your file and it goes down significantly with larger volumes.

  • Standard Line Type and Carrier:
    • From 1 to 0.1 cents per phone number, depending on volume.
    • Volume tiers start at 10,000, 50,000 and 500,000

  • Advanced Line Type and Carrier:
    • From 3 to 0.6 cents per phone number, depending on volume.
    • Volume tiers start at 1,000, 5,000, 10,000, 50,000 and 100,000

  • Active Phone Number:
    • From 10 to 4 cents per phone number, depending on volume.
    • Volume tiers start at 1,000, 5,000, 10,000, 50,000 and 100,000

  • Use "Estimate your costs" above for a specific quote.
  • There is a $7.00 Minimum Charge

    Contact Us by email or Call 800-990-2939 (Mon - Fri 8:30 am - 4:00 pm PST)