Bypass "Phone number type not supported" and verify Claude Pro, Anthropic Console, and developer accounts using genuine physical AT&T, Verizon & T-Mobile mobile numbers.
Anthropic blocks VoIP lines (Google Voice, Skype, TextNow, burner apps) by performing real-time carrier intelligence lookups via Telesign. If a number is not registered as a physical cellular device on AT&T, Verizon, or T-Mobile, Claude blocks the SMS entirely. USAVerify provides 100% genuine physical SIMs that pass this inspection instantly.
Our US numbers are provisioned directly from Tier-1 mobile carriers. They pass Anthropic's carrier database lookup on the very first attempt.
Receive your 6-digit Claude verification code instantly in your private dashboard with automated countdown and auto-sync.
If Anthropic fails to deliver the SMS code within the 20-minute rental session, 100% of your credits are automatically refunded to your balance.
| Feature | USAVerify Real SIM | Google Voice / TextNow / Free SMS |
|---|---|---|
| Claude AI Phone Verification | ✅ 100% Pass Rate | ❌ Rejected ("Type Not Supported") |
| Anthropic Console API Access | ✅ Instant Activation | ❌ Blocked at Verification |
| Carrier Line Classification | ✅ Cellular / Mobile | ❌ VoIP / Virtual |
| Privacy & Security | 🔒 Private Single-User Line | ⚠️ Shared / High Abuse Score |
| Delivery Speed | ⚡ 3–5 Seconds Delivery | ⏳ Dropped or Never Sent |
Log in to USAVerify Pro and choose 'Claude AI / Anthropic' from our 300+ SMS verification catalog.
Get assigned a clean AT&T or Verizon non-VoIP number with country code +1.
Paste the phone number into Claude.ai or console.anthropic.com and click 'Send Code'.
Watch your live dashboard. The 6-digit code arrives in seconds. Enter it into Claude to activate your account!
Anthropic queries telecom Line Type Intelligence (LTI) databases through carriers like Telesign and Twilio. If your number is classified as VoIP (Google Voice, TextNow, Skype, Dingtone, burner apps), Claude rejects it immediately before sending an SMS. Only authentic mobile cellular SIM cards pass this check.
Yes. Our US lines are 100% genuine physical SIMs from major US carriers (AT&T, Verizon, T-Mobile). They work seamlessly for Claude free accounts, Claude Pro subscriptions, and Anthropic Console API developer registrations.
Yes. Many international developers and researchers use USAVerify to obtain US Claude accounts. For best results, use a clean residential US IP address or trusted browser profile during registration.
USAVerify operates on a strict No-Code, No-Charge policy. If Anthropic does not transmit the SMS OTP within the rental window, the order automatically cancels and 100% of your funds are credited back instantly.
Claude AI SMS verifications start from $0.50 per successful OTP. We accept Bitcoin, USDT, and other crypto with zero minimum lock-ins.