[BUG] Phone verification in Viet Nam

Status Fixed / completed
Maintainer reply None cached
Activity 4 comments · opened Mar 28, 2026 · closed Mar 31, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

Hello Anthropic Support,

I’m unable to verify my phone number during Claude signup. The system shows:
“Unable to send verification code to this number. Try a different number or try again later.”

I’m using a valid Vietnam mobile number in international format (+84983424010 and +84961835963 ).
Could you please check whether this number is blocked, rate-limited, or already linked to another Claude account, and help unlink/unblock it if possible?

Thank you.

<img width="643" height="398" alt="Image" src="https://github.com/user-attachments/assets/e7c15402-e635-458d-9203-4dc8b8cde7ed" />

What Should Happen?

Please help me unblock these phones

Error Messages/Logs

Steps to Reproduce

Please help me unblock these phones

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Please help me unblock these phones

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_

View original on GitHub ↗

4 Comments

github-actions[bot] · 6 months ago

Found 3 possible duplicate issues:

  1. https://github.com/anthropics/claude-code/issues/35216
  2. https://github.com/anthropics/claude-code/issues/35459
  3. https://github.com/anthropics/claude-code/issues/39122

This issue will be automatically closed as a duplicate in 3 days.

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🤖 Generated with Claude Code

blazefury-fire · 6 months ago

Is bug fixed or not?

github-actions[bot] · 6 months ago

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.