Receive Signal OTP online
Get a Signal OTP without handing over your personal SIM. Pick a country, rent a number for registering a Signal account on a new device, and watch the code arrive in OTP Bolt's real-time inbox.
How to receive a Signal code
Top up your wallet
Add $5 or more by card or USDT/USDC. Credit never expires.
Choose Signal and a country
Prices and live stock are shown per country — cheaper routes are listed first.
Copy the number into the app
Paste it into Signal's phone-verification screen and request the SMS.
Read the code in your inbox
It appears automatically. No SMS within the window? You're refunded in full.
Built for developers too
Teams use OTP Bolt for testing Signal-based alerting bots and libsignal client integrations. The REST API exposes the same flow:
POST /api/v1/activations
{"service":"signal","country":"us"}
Use temporary numbers for registering a Signal account on a new device — and respect Signal's terms of service. For accounts you'll keep, use a dedicated number.
Popular countries for Signal
Frequently asked questions
Which countries work best for Signal?
Stock moves all day, so OTP Bolt shows live availability per country for Signal. Matching the number's country to your account region gives the highest success rate.
Will I be charged if Signal never sends the code?
No. You're debited when you rent the number and refunded automatically if no SMS arrives before the rental closes.
Can I receive a second Signal code on the same number?
Often, yes — when the network supports it a 'Request another SMS' button appears on the activation while the window is open.
Can I automate Signal verifications?
Yes. The OTP Bolt REST API lets you rent a number with service="signal", poll for the code and cancel or finish the activation — ideal for testing Signal-based alerting bots and libsignal client integrations.
Your next OTP is one click away.
Create a free account, top up from $5 and receive your first code in under a minute.