Web3 Powered Telephony Protocol

Bridging 5 Billion Mobile Subscribers Using SMS and Voice Into Secure Communications With A Web3 Mobile Number

Start Messaging For Free!


Your Web3 Mobile Number

Web3 Native Messaging That Bridges to 5 Billion Mobile Numbers!

Start With 3NUM For Free
Background color showcasing the 3NUM Messenger
3NUM Messenger supporting trusted Web3 and Web2 messaging with 3NUM Shield, the world's first Web3 Mobile Number

What is 3NUM?

We developed the world's first globally routable web3 mobile number, called a 3NUM Shield bridging 5 billion mobile subscribers into secure and trusted web3 communications!


Web3 Native

Encrypted Communications

3NUM powers end-end encrypted voice* and messaging between Web3 addresses while bridging to over 5 Billion mobile subscribers.

3NUM supports Web3 native features including crypto payments and more! 

*Voice services will be accessible for all users in early 2024

Privacy First

Anonymous Web3 Mobile Number

3NUM's Web3 Mobile Numbers are anonymous and are never made public

No SIM Swaps

With 3NUM Shield

Custody your mobile number the same way you custody your crypto and stay protected against SIM Swaps

Phone Calls* & SMS

From Web3

3NUM Web3 Mobile Numbers are globally routable allowing users to stay connected with existing phone contacts

*Voice services will be accessible for all users in early 2024

Free For Web3

Start Messaging Now

Start enjoying trusted Web3 Communications for free, and message any wallet address including:

Trusted Communications

With The 3NUM App

With built in spam and phishing prevention, 3NUM delivers a trusted communication experience free from annoying and dangerous SMS spam

Connect With WiFi or Data

Start Messaging Now!

Ditch your expensive, antiquated phone plan and stay connected to your contacts anywhere you have WiFi or Data!

Connect With WiFi
Data eSIM's Coming Soon

Say hello with 3NUM


Getting started with 3NUM is completely free for Web3 Communications including end-end encrypted wallet messaging and calls*. Upgrade to a 3NUM Shield Web3 Mobile Number and stay connected with existing contacts

Trusted by thousands of customers!


Unlimited Web3 Communication


STart Messaging

Unlimited Web3 Communication

Personalized 3NUM Messaging Username

End To End Encrypted Communication


Upgrade To A Web3 Mobile Number

.015 Eth/Year

Upgrade To 3NUM Shield

Everything Available With The Basic Plan

Unlimited SMS/Voice* To Traditional Phone Numbers

Fully Protected Against SIM Swaps

Example of a 3NUM Shield- the worlds first Web3 Mobile Number
Web3 Mobile Number

3NUM Shields are the worlds first web3 mobile number created by transforming a +1 globally routable mobile number into a blockchain secured messaging identifier

Get your 3NUM Shield Now

Only .015 Eth

Renews Annually

Additional Benefits:

No-Dox Number

3NUM Shields are purchased with crypto and require zero kyc info, meaning they can be used as a trusted, no-dox number for popular anywhere a phone number is needed!

No SIM Swaps

3NUM Shields are controlled by your wallet and do not rely on SIM cards. 3NUM Shields cannot be ported preventing all risks of a SIM Swap

Shielded Numbers

The underlying number of a 3NUM Shield is never made public. Instead, it is hashed and used as the tokenID during the minting process.

Wallet Secured SMS 2FA*

3NUM Shields are solely controlled by a users wallet and are protected against SIM SWaps. This means SMS 2FA codes sent to a 3NUM Shield can only be accessed by controlling the private key that owns your 3NUM Shield.
*Available for certain websites

Secure Messaging Supporting Web3 And Web2

Trusted Messaging For All

Sign in with your wallet to begin encrypted messaging with your web3 frens. Upgrade to a 3NUM Shield to message 5.5 billion mobile numbers directly from web3! 

3NUM Messenger supporting trusted Web3 and Web2 messaging with 3NUM Shield, the world's first Web3 Mobile Number

Message Everyone from 3NUM:

Ethereum LogoAvalanche Blockchain LogoLogo or ENS DomainsLogo for Avvy DomainsLogo for .lens profiles Logo for SMS messaging available with 3NUM
Additional Benefits:

Free For Web3

Start with just a wallet to begin end-to-end encrypted messaging with your web3 frens. The 3NUM Messenger supports messaging between Eth & Avax wallets plus ENS, Avvy Domain and .lens names

Web3 Usernames

Set your favorite ENS or Avvy Domain as your dedicated messaging name that shows up when messaging a new recipient

End-End Encryption

Messaging between wallet addresses, web3 usernames and 3NUM Shields are fully end-end encrypted. Messages sent to traditional phone numbers are encrypted up to the telco gateway

Web3 + Web2 Messaging

Upgrade to a 3NUM Shield to unlock full 2-way messaging between web3 users and 5.1 billion traditional phone numbers

Spam Prevention*

SMS Spam is annoying and potentially dangerous. The 3NUM Messenger puts users in control with innovative spam prevention features to control inbound messages
*Coming Soon

Smart Inboxes*

Enjoy messaging again with intuitive inbox management features to customize your messaging experience.
*Coming Soon

More To Come!

Our team is focused on constantly improving the 3NUM Messaging experience. A full list of what's to come is available on our roadmap article here

End-End Encrypted Communications

Conversations between web3 addresses run over decentralized E2EE messaging protocols. 3NUM is composable meaning it can support multiple encrypted messaging protocols.

Decentralized Telephony Gateway

The 3NUM Protocol stack includes a decentralized telephony gateway that bridges 5 billion traditional mobile numbers to 3NUM Shields.

Voice and SMS Support

3NUM Shield users can access traditional SMS and voice services via the the Telephony Gateway supported by the 3NUM Protocol

3NUM Pricing

Start MEssaging web3 for free

Unlock All The Features of 3NUM

.015 Eth

Renews Annually

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Backed By:

BlueYard Capital
Notation Capital
Acequia Capital Logo
Logo for A100x Venture Fund

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