Well Signal don't store your number in plain text. It's hashed. Only people who already know your number can message you and you can turn this off entirely and configure it however you want.
In regards to getting free SMS numbers, just search "free sms verification number" via your favourite search engine. You'll find a plethora of numbers. I understand a lot of them may have already registered with Signal but if you hunt around you'll find something. Remember these are public phone numbers though so everybody can see the text messages going to them - this is what make it anonymous. To prevent anybody re-registering with your phone number and sending messages as you you'll want to enable registration lock in Signal's settings. After this you can just communicate via your username.
Hope this helps, enjoy using Signal. I suggest Molly as the client as it encrypts your messages on device too, implements RAM shredding and lots of other cool stuff :D
Curiio
npub1dt…2x90t
2026-09-23 14:33:03 UTC
in reply to nevent1q…azhl
Author Public Key
npub1dtzccz2f9kf9dsazystgat6hj6h2cceueq6464awjfl7e0dpdynq22x90tPublished at
2026-09-23 14:33:03 UTCEvent JSON
{
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"pubkey": "6ac58c09492d9256c3a224168eaf5796aeac633cc8355d57ae927fecbda16926",
"created_at": 1790173983,
"kind": 1,
"tags": [
[
"e",
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],
[
"e",
"b5b0a9560c249943b0df949f78f015576c0d0b6c870703f10303c410c7cca97b",
"wss://nos.lol",
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],
[
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],
[
"client",
"Dark Wisp"
],
[
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],
"content": "Well Signal don't store your number in plain text. It's hashed. Only people who already know your number can message you and you can turn this off entirely and configure it however you want. \n\nIn regards to getting free SMS numbers, just search \"free sms verification number\" via your favourite search engine. You'll find a plethora of numbers. I understand a lot of them may have already registered with Signal but if you hunt around you'll find something. Remember these are public phone numbers though so everybody can see the text messages going to them - this is what make it anonymous. To prevent anybody re-registering with your phone number and sending messages as you you'll want to enable registration lock in Signal's settings. After this you can just communicate via your username.\n\nHope this helps, enjoy using Signal. I suggest Molly as the client as it encrypts your messages on device too, implements RAM shredding and lots of other cool stuff :D",
"sig": "a53a386100be68eecd43fbc565a79e84813c6a5e416d23c8cee0427204f3d4af39ac296495a7588a84c4cdb15542961c75fd7860182af98388dde885e2e5111b"
}