// Glossary
Phone Verification
Confirming a phone number is real and active on a carrier, and identifying its line type, before you call or text.
Definition
Phone verification checks that a number is valid and currently active, usually via an HLR lookup or carrier query, and returns its line type and carrier. Like email verification, it filters out dead and disconnected numbers before outreach so you don't waste dials or texts. Knowing the line type also supports compliance, since calling and texting mobile numbers carries stricter consent requirements under laws like the TCPA.