"It looks like this is a virtual phone number (VoIP)"
OpenAI uses aggressive telecom carrier lookup databases to reject Google Voice, Skype, and free SMS apps. USAVerify provides real physical SIM cards from AT&T, Verizon, and T-Mobile which register as legitimate cellular mobile devices, passing carrier validation completely.
ChatGPT & Claude AI Ready
Works for OpenAI, ChatGPT Plus, OpenAI API keys, Anthropic Claude, Midjourney, and all major AI platforms.
Instant OTP Delivery
OpenAI 6-digit verification codes arrive on your USAVerify screen in under 5 seconds with zero carrier latency.
Automated 100% Refund
If OpenAI delays the SMS code past the timeout window, the order cancels and you are fully refunded automatically.
How to Verify OpenAI / ChatGPT
- Log in to USAVerify and ensure you have balance for OpenAI ($0.90).
- Search for 'OpenAI / ChatGPT' and rent a clean USA (+1) phone number.
- On OpenAI registration screen, select United States (+1) and paste the number.
- Click 'Send Code' on OpenAI. The 6-digit OTP will instantly appear on your USAVerify dashboard. Copy it to verify!
Why Free VoIP Numbers Fail on ChatGPT & OpenAI in 2026
OpenAI uses Arkose Labs and Telesign to actively block all VoIP, virtual, and prepaid cloud phone lines from creating ChatGPT and API accounts. Free texting apps and public SMS sites will never work. USAVerify Pro routes through legitimate physical US carrier SIMs, allowing you to bypass the VoIP block in under 60 seconds.
Real US Non-VoIP SIMs for OpenAI
To successfully fulfill ChatGPT & OpenAI phone verification requirements without compromising your privacy, utilizing authentic Tier-1 physical cellular infrastructure is essential.
3-Step Safe Verification Checklist
Select ChatGPT & OpenAI
Choose ChatGPT & OpenAI from our instant catalog. A dedicated US physical SIM line is reserved exclusively for you.
Enter Assigned Phone Number
Copy your assigned +1 USA phone number and enter it into the ChatGPT & OpenAI registration screen.
Receive Instant OTP
Your verification code arrives in under 5 seconds. If no code arrives, your balance is 100% automatically refunded.
Frequently Asked Questions: ChatGPT & OpenAI Verification
Why does OpenAI say 'VoIP number not supported'?
OpenAI strictly forbids cloud telephone providers to stop bot registrations. USAVerify Pro solves this by provisioning genuine physical cellular SIM cards that pass OpenAI's carrier test.
Can I use this number to subscribe to ChatGPT Plus and Team?
Yes, our phone numbers are accepted during ChatGPT account registration, OpenAI Platform API developer signups, and ChatGPT Plus upgrades.
Does this work for Claude AI and Anthropic as well?
Yes, our Tier-1 physical SIM cards also work seamlessly for Claude AI, Anthropic Console, and other leading artificial intelligence platforms.
How long does it take for the OpenAI code to appear?
The 6-digit OpenAI verification code typically appears on your screen in 2 to 5 seconds.