USA Caller Lookup
FreeLiveLast verified 24 Sept 2026
US phone number lookup returning carrier, location, and FTC robocall complaint history, no key needed.
Example request
curl -s 'https://www.usacallerlookup.com/wp-json/ucl/v1/number/628-201-7751'
Free tier, in plain English
Free with no key; capped at 60 requests per minute per IP address.
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