Conversational modules
Programmable Channels
Platform functionality
Business segments
Industry verticals
Department
Our services
Solutions for telecoms
The Infobip advantage for telcos
See why leading telecoms around the world choose Infobip to transform their network
Telecom CPaaS partnerships
Create new B2B revenue streams with our omnichannel communications platform
Telecom core & security
Anam Protect Firewall
Secure your network from SMS and Voice fraud with our firewall that protects 120+ operators
SMS Firewall
Ensure all A2P SMS traffic is properly charged and eliminate revenue leakage with our SMS Firewall
Community & Resources
Knowledge hub
Title
What is E.164?
E.164 is an international standard public telecommunication numbering plan that defines the worldwide public switch telephone network and some data networks.
In other words, it defines the general format for international telephone numbers.
Phone numbers that conform to e.164 are limited to 15 digits maximum, excluding country codes. Numbers displayed on recipient devices are usually prefixed with the “+” symbol to indicate that the number includes the country code.
Recipient network subscribers are able to determine this usually by looking at the NOA (nature of address) field of signaling messages.
Generally e.164 number format must only contain digits, spilt by country code (1 to 3 digits), followed by subscriber/recipient number (max 12 digits).
