Phone Validator API
Get the linetype for any North American phone number with our superfast phone number validation API.
We are the experts for phone number lookups to determine line type. Do you need to know if phone numbers are mobile, landline, toll-free or VOIP? We cover all line types and all major U.S phone companies!
Our RESTful phone number validation API lets you run phone lookups at the speed of light. There's three search options so you can customize our data for your project and budget. See our API documentation here. Find us on Zapier, too:
Search Options
"Line Type Basic" "Line Type Detail"
Price per Lookup
Less than 1⁄2 cents each!
Less than 1 cent each!
Most Popular
Determines Line Type*
(Cell Phone, Landline, VOIP, Toll-Free or Unknown)
Determines Service Provider*
Determines Location*
(City and State or State only)
Checks Ported Status2
Most Accurate3
Best Value
Most Popular
Available by API
Available by Batch
* Based on area code, prefix and thousand block at the time of issuance.
2 Includes a check of real-time ported number data to identify line types that have changed from one line type to another (such as landline to cell) and real-time check of actual service provider. Sorry, this is not available for Canadian phone numbers. Any Canadian phone numbers submitted will be automatically run through our Line Type Basic search instead.
3 Line Type Detail is 99% accurate for line type identification versus Line Type Basic which is 95% accurate.
PORTED NUMBERS: Ported numbers are phone numbers that have been switched between phone companies (allowing a person to keep his/her phone number) or numbers that have been switched from one line type (like landline) to another (like cell).
TCPA AND DNC WARNING: and The Open Data People, Inc. does not offer legal advice about the TCPA or DNC list, nor offers protection against claims of violations against the respective laws. Please consult your attorney to make sure your phone calls and text messages are compliant with the TCPA, DNC list and any similar state laws.