XChat tests X Numbers after pitching an end to phone-number swaps
The optional code would let strangers message or call only when they know a user's X Number, while mutual follows and existing chats remain exempt.
By Ryan Merket · Published
Primary source: X - @blankspeaker
Why it matters
X Numbers would give XChat a shareable contact credential without exposing a mobile number, helping X separate public profiles from permission to message or call.

X appears to be testing an optional "X Numbers" feature that would give XChat users a private code for controlling who can message or call them, adding a phone-number-like access layer to a service marketed around eliminating phone-number exchanges.
https://x.com/blankspeaker/status/2093384382614790169
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