Claude / Claude Code Signup and Phone Verification
Claude and Claude Code share one Anthropic account. Verify a number once and both products work — which is also why the number should stay reachable for later logins.
When Anthropic asks for a phone
- New account signup in most regions;
- Logins from new devices or countries;
- Subscription or account changes;
- Abnormal activity or rapid node switching.
One account for Claude and Claude Code
- A single verification covers both entry points;
- Keep the number for future device logins;
- For multiple accounts, use one number per account.
Step-by-step
- Open the signup page through a clean US node;
- Enter e-mail and password;
- Choose United States (+1) and enter the rented number;
- Request one code and read it in your private link;
- Keep IP and device stable for 24 hours afterwards.
Why numbers get refused
- VoIP or public-pool numbers;
- Numbers already used on Claude;
- Country mismatch or datacenter IPs;
- Too many attempts in a short window.
Change the IP first, then the number.
Accounts per number
One. Use separate numbers, browser profiles and egress IPs for separate accounts.
Missing code checklist
- Refresh the SMS center;
- Wait 1-2 minutes;
- Switch to a clean US node and retry once;
- Swap to a new prefix if nothing was ever received;
- Ask support which prefixes work that day.
How long to keep the number
- Trial — 2-9 days;
- Daily use — 10-20 days with renewal;
- Team or subscription — 20-30 days, renewed every 30 days.
Account security
- Enable two-factor authentication with an authenticator app;
- Avoid sharing accounts across many devices;
- Keep the login region consistent after subscribing to Pro;
- Track account → number → expiry and renew early.
Top up with USDT or Alipay/WeChat, buy the number in the market and read the code in your private SMS link. Check live prices and stock (US T-Mobile real SIM, non-VoIP, 2-30 day tiers with renewal).
Open the marketContact supportFAQ
Is a phone required for Claude?
In most regions yes, and new devices can trigger it again.
Does Claude Code need separate verification?
No — same Anthropic account.
Why was my number rejected?
Usually a used number, a VoIP range, or a dirty IP. Change IP first, then use a fresh number.
How many accounts per number?
One.
The code never arrives — what now?
Refresh, wait two minutes, retry from a clean US node, then swap the number.
Which tier do you recommend?
2-9 days for a trial, 10-20 days for daily use, 20-30 days for subscription accounts.
Does an expired number break the account?
It blocks future re-verification; completed verification stays valid.
Can I reuse one number for ChatGPT and Claude?
Not recommended — use one number per account per platform.