About Callibi

Identity shouldn't depend
on a SIM card.

Callibi was built on a simple observation: the way we identify each other online is fragmented, borrowed from telecom infrastructure, and overdue for something native to the internet itself.

Communication is fragmented

Most of us juggle a phone number, several usernames, and multiple email addresses just to stay reachable. None of it was designed to work together.

SIM cards tie your identity to a physical piece of hardware and a specific carrier.
Telecom providers sit between you and the people you're trying to reach.
International charges punish you for the simple act of talking to someone abroad.
Multiple usernames mean you're a different "you" on every platform.
Email addresses were never designed for real-time voice or video.
Fragmented identities make it harder for the people who matter to actually find you.

A universal internet identity system

We believe every person online deserves one permanent, portable identity — not tied to any device, carrier, or country — that follows them everywhere they go on the internet.

One number, issued to everyone

To give every internet user their own permanent Callibi Number — a single identity for messaging, calling, video, and everything communication becomes next.

Be one of the first numbers issued.

Claim your permanent Callibi Number in under a minute.

Get Your Number