What is the best phone number validation API for a small business?
1Lookup is our pick for a small business: one phone validation is 1 credit, $0.00495 a lookup on the $99 Starter plan, and it returns the line type, current carrier and a risk level, plus porting status and Do Not Call flags on US and Canada numbers. You can run a single check free with no account, or start the 7-day free trial, which includes $5 of credits on Starter.
Start a 7-day free trialNo payment today.
These are the four things to compare before you choose.
- Price: Starter is $99 a month for 20,000 checks, and unused credits roll over for 3 months.
- What one call returns: line type, carrier, active status and a risk level, so you know whether a number can be called or texted.
- Other checks: the same credits verify emails at 1 credit and IP addresses at 1 credit each.
- Trying it: a single number is free in the phone validator, and the 7-day free trial opens the API and CSV upload.
Check one number now with our free phone validator.
To run it from your own software, see the phone validation API.
To see how it ranks against nine other APIs, read our ranking of the 10 best phone validation and HLR lookup APIs.
These are the next questions buyers ask.
- What is the cheapest phone number validation API per lookup?
- How much does a phone validation lookup cost with 1Lookup?
- Is there a free phone number checker for international numbers?
See all the questions answered in the help section.