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The identity and phone number verification methods required for U.S. residents when signing up for KakaoTalk, changing devices, or using major services (Kakao Pay, Kakao Bank, etc.) vary depending on the purpose of use.

1. Verification using a local U.S. phone number (+1)

Applicable to: Creating and signing up for a simple KakaoTalk messaging account

Method: Select +1 (U.S./Canada) as the country code and sign up by receiving an SMS verification code to your local phone number.

Note: Accounts registered with a U.S. number cannot undergo identity verification (such as PASS) with a Korean mobile carrier under your name. Therefore, there will be restrictions on linking with domestic financial and payment services or using Kakao Certificate issuance services. Additionally, due to security policies, receiving SMS messages to a U.S. number may be delayed or blocked.

2. Maintaining and using a Korean budget phone (eSIM / basic rate plan)

Applicable to: Cases requiring full Korean-standard identity verification, such as Korean financial services, public institutions, or Kakao Certificates/payments

Method: Maintain a Korean mobile phone line under your name on the cheapest basic rate plan (e.g., budget phone) without keeping it suspended for an extended period.

While staying in the U.S.…