Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about E.164?
Summarize this article for a 10 years old
E.164 is an international standard (ITU-T Recommendation), titled The international public telecommunication numbering plan, that defines a numbering plan for the worldwide public switched telephone network (PSTN) and some other data networks.
|The international public telecommunication numbering plan|
|Latest version||June 2020|
|Committee||Study Group 2|
|Related standards||E.123, E.163|
E.164 defines a general format for international telephone numbers. Plan-conforming telephone numbers are limited to only digits and to a maximum of fifteen digits. The specification divides the digit string into a country code of one to three digits, and the subscriber telephone number of a maximum of twelve digits.
Alternative formats (with area codes and country specific numbers) are available. Any country-specific international call prefixes are not contained in the specification.
The title of the original version and first revision of the E.164 standard was Numbering Plan for the ISDN Era