Use TwinNumber with Signal.
Setting up Signal with a U.S. number, or keeping one after moving abroad? Use a real U.S. mobile number and get the code to register on Signal right in your browser.
- What we tested
- Receiving SMS verification codes
- Line type
- Mobile
- Last tested
- Oct 12, 2026
We re-test Signal regularly and update this date.
What Signal uses your number for
- Registering your Signal account with a verification code.
- Letting people who have your number find you, unless you turn it off.
- Re-registering on a new phone with the same number.
Add your TwinNumber on Signal
- 01
Use your current phone
Change Number only works while your old device can still send and receive Signal messages.
- 02
Open Change Phone Number
Go to Settings, then Account, then Change Phone Number.
- 03
Enter both numbers
Type your old and new numbers, then confirm the new one.
- 04
Verify by SMS
Enter the code texted to the new number to finish registration.
Why the line type matters
Messaging apps often check whether a number is mobile, landline or VoIP before sending a code, and many turn VoIP numbers away. TwinNumber numbers are registered as mobile.
Why banks reject Google Voice →
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WeChatQuestions
Will people I chat with see my number on Signal?
By default, no: Who can see my number is set to Nobody, so only people who already saved your number see it. A username lets others reach you without it.
Do my contacts find out when I change numbers?
People you have chatted with may see an alert in the chat; saved contacts you never messaged do not. Your username stays the same.
Do I need to live in the U.S.?
No. TwinNumber works from 150+ countries with just a browser and an internet connection.
Is TwinNumber affiliated with Signal?
No. We test our numbers with popular services and publish the results. Signal is a trademark of its owner.
What if a code doesn't arrive?
Request a new code, then check your inbox and notification settings. If it keeps failing, contact us and we'll look into it.
Ready for Signal codes?
Join the waitlist and be among the first to get your U.S. mobile number.