Claude (Anthropic) Phone Verification
Claude verifies a phone number at sign-up and again when it sees an unusual login. The check prefers carrier lines: VoIP ranges and numbers already used on Claude are refused.
Use a US T-Mobile number with a consistent US IP, and keep the line alive if you use the account daily.
Codes usually arrive in under a minute and sync automatically to your SMS center. If a code never arrives, swap the number instead of paying twice.
Open the marketContact supportWhat you get
- 21-30 day tiers keep the same number available for later device or security checks.
- One number per account, so acceptance stays predictable.
- If the number is refused, swap it and change your IP at the same time.
How it works
- Buy a number — Choose the Claude tier; 11-20 or 21-30 days if you use Claude every day.
- Verify — Enter the number in the Claude sign-up dialog with the country code.
- Read the code — Check the private link or SMS center; codes normally take under a minute.
- Troubleshoot — Confirm the number format, wait two minutes, then swap the number and retry from a clean IP.
Live prices
| Project | Tier | Price | Stock |
|---|---|---|---|
| Claude | 2-9 days | 0.100 USDT | 30,513 |
| Claude | 10-20 days | 0.150 USDT | 20,480 |
| Claude | 21-30 days | 0.200 USDT | 1,888 |
| OpenAI / ChatGPT | 2-10 days | 0.150 USDT | 18,139 |
| OpenAI / ChatGPT | 11-20 days | 0.200 USDT | 14,134 |
| OpenAI / ChatGPT | 21-30 days | 0.300 USDT | 1,182 |
| Google Voice | 2-30 days | 0.225 USDT | 1,834 |
| TikTok | 2-4 days | 0.075 USDT | 7,235 |
| TikTok | 5-15 days | 0.075 USDT | 44,050 |
| TikTok | 16-30 days | 0.120 USDT | 2,444 |
| 2-92 days | 0.150 USDT | 5 | |
| Wise | 2-30 days | 0.450 USDT | 54,639 |
Prices and stock refresh from the live market every day. Full list: all services and tiers.
FAQ
Does the number need to stay active?
If you want to re-verify the same Claude account later (new device, suspicious login), yes — keep it and renew.
Can I move one account to a new number?
You can change the phone on the account, but the new number must be fresh and able to receive SMS.
Which tier do you recommend?
11-20 or 21-30 days for daily use; the short tier is enough for a quick test.
Related pages
OpenAI / ChatGPT Phone VerificationGoogle Voice VerificationNon-VoIP Numbers for Account VerificationUS SMS Verification NumbersBulk SMS Verification API