What are the best Twilio Lookup alternatives for carrier and line type data?
1Lookup returns the carrier and line type for 1 credit on a US or Canada number, $0.00495 on the Starter plan, against $0.008 a request for Twilio's line type package (read 30 October 2026). It also answers Twilio Lookup v2 requests, so you can switch by changing one base URL and one key.

This is how the switch works.
- Change the base URL to https://app.1lookup.io/api/compat/twilio and send your 1Lookup key as the password.
- Keep the Fields parameter, your account SID as the username and the JSON your code already reads.
- Pay 1 credit for carrier and line type on a US or Canada number and 3 credits elsewhere.
- Test it on a handful of numbers, then switch the rest of your lookup traffic over.
Check one number now with our free carrier lookup.
To run it from your own software, see the carrier lookup API.
To see Twilio's full price list next to ours, read our Twilio Lookup comparison.
For the code in curl, Node and Python, follow the step-by-step guide to switching from Twilio Lookup.
These are the next questions buyers ask.
- What is the cheapest phone number validation API per lookup?
- What is the best phone number validation API for a small business?
- What is the best free reverse phone lookup that shows the carrier?
See all the questions answered in the help section.