One-time numberUnknown SMS verification
Get a temporary United States phone number, receive your Unknown verification code online, and keep your own number private. From $0.83 per number, refunded in full if no code arrives.
Verify Unknown in four steps.
- 1
Create an account and top up
Sign up with an email address and add funds to your wallet in cryptocurrency.
- 2
Order a Unknown number
Pick Unknown in the dashboard and pay $0.83. The number is shown as soon as it is rented.
- 3
Enter it on Unknown
Paste the number into the Unknown sign-up or login form and request the verification SMS.
- 4
Read the code
The message appears in your dashboard as it arrives. If no code comes, the order is refunded in full.
Order a Unknown number from code
The SMS verification API takes the same order with the service slug unknown.
curl -X POST https://smstogo.net/api/v1/orders \
-H 'Authorization: Bearer sk_...' \
-H 'Content-Type: application/json' \
-d '{"country_code":"us","service_slug":"unknown"}'Unknown verification questions
Can I receive Unknown SMS verification codes online?
Yes. Order a Unknown number, enter it on Unknown, and the verification code appears in your SMSToGo dashboard or through the API as soon as the text arrives.
How much does a Unknown verification number cost?
$0.83 per number, charged from your prepaid wallet when you order. There is no subscription.
What if Unknown never sends the code?
The order ends without a message and the full $0.83 goes back to your wallet automatically. Unknown may refuse numbers it recognizes as virtual, so you only pay for numbers that actually receive a code.
Can I use the same number for Unknown again later?
No. Each number is one-time: it receives the code for a single order and is then released, so it cannot be used to recover the Unknown account later.