Numbers with prefix 431 in United States
In United States's numbering plan, the area code 431 covers Manitoba. It identifies where a line was allocated, not who is calling: numbers are portable and caller ID can be spoofed, so the digits alone do not identify the caller.
Search a number with prefix 431
Search a phone number or a company name (Bank of America, Verizon and AT&T...) to check if it has been reported as spam.
No numbers reported with prefix 431
We do not have public reports for this prefix yet. Try searching a full number or submit a report if you just received a suspicious call.
About numbers 431
Numbers starting with 431 are landlines in United States. They are assigned geographically. Sales calls from landlines are common, especially from telecom and energy companies.
Official source and review
Google libphonenumber (compiled from national numbering plans) · Document: 2026-08-28 · Reviewed: 2026-08-31
A prefix describes an official allocation. Portability and caller-ID spoofing mean it cannot identify the caller on its own.