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us country code US Country Code (+1): How to Format USA Phone Numbers & SMS
The US country code is +1. When you need to format an international phone number to reach a United States subscriber or receive an SMS verification code from a US-based platform, y
region code for us Region Code for US: USA Dialing Format & SMS Guide (2026)
The region code for the US is +1. When you need to enter a United States phone number for SMS verification, account signups, or one-time password delivery, you must prepend the +1