# NumLooker > Free reverse phone number lookup. Find out who called you, where the number is registered, and the carrier — all without an account. NumLooker is a US-based reverse phone lookup service that searches public records, civil records, and carrier data to identify unknown callers. Every search is anonymous: the owner of the number is never notified. ## Common questions - **Is it free?** Yes. NumLooker does not charge for reverse phone lookups. - **Is it legal?** Yes — reverse phone lookup using public records is legal in the United States. The data should not be used for FCRA-regulated purposes (employment screening, tenant screening, credit decisions). - **What data is returned?** When available: the registered owner's name, address, age, phone type and carrier, possible relatives, and associated email or social profiles. - **Does the service notify the person being searched?** No. All searches are confidential. ## Coverage - All US states and territories - Mobile, landline, and VoIP numbers - Area code and prefix-level directories at /phone/{npa}/{nxx} ## Editorial - Author: NumLooker Editorial Team - Contact: contact@numlooker.com - Sitemap: https://numlooker.com/sitemap.xml