Phone Validator API
Use our API to lookup U.S. or Canadian phone numbers to learn line type, phone company, location and if invalid/fake. To get started, just test some numbers for free at our homepage and then get a free trial here!
Phone Validator Homepage
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, VOIP, or fake? 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.
Search Options
"Line Type Basic"
Most Popular!
"Line Type Detail"
Most accurate!
"Fake Number Check"
Price per Lookup
Less than 1⁄2 cent each!
Less than 1 cent each!
Less than 1⁄4 cent each!
Determines Line Type*
Cell Phone, Landline, VOIP, Toll-Free, Unknown or Fake
NEW! Detects fake phone numbers like 555-555-5555 and 123-456-7890. There is a 99% certainty that a number we have identified as "fake" cannot be called or texted.
Checks Ported Status2
Real-time check for a change from original line type. Our most accurate line type lookup.
Determines Phone Company*
Determines Location*
City and State or State only
Most Accurate3
Most Popular
Available by API
Available by Batch
Minimum Per Batch $35.00 $35.00 $35.00
Batch Turnaround Time4 5 Minutes 30 Minutes 5 Minutes
Download Sample File Click here Click here Click here
* 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 94% accurate.
4 Based on file size under 25,000 records.
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.