Talk:E.164

Aware

Is anybody aware where the phone providers usually buy the phone numbers from? I am looking for a telephone equivalent of InterNIC. Wk muriith

First the ITU assigns country codes, then there will be some regulatory body that manages the national numbering plan i.e. phone number/area code assignment etc. For information about your country's numbering plan check out the ITU national numbering plans. If you're in North America, then check out Nanpa 134.226.1.62 (talk · contribs · WHOIS)

Unlike IP addresses which are fixed length and space is given out as nessacery, each "country" (sometimes for historical or political reasons country codes don't quite line up with independent countries) gets a prefix from the ITU and then gets to do pretty much what they like with the numbers after it (there is an overall length limit on the international number but its at least a couple of digits longer than most actual phone numbers are so its hardly a pressing limitation). So there is no need for an international body to enforce efficiant use (like there is with IP addresses) just to make very occasional new allocations when countries split. Plugwash 21:46, 7 March 2006 (UTC)

Example needed

An example or two would be helpful in explaining the standard to the reader. -- Beland (talk) 00:54, 1 April 2010 (UTC)

Twelve years later and we still need a couple of examples. - X201 (talk) 08:23, 21 October 2022 (UTC)

Now 13 Years have passes. Bunnypranav (talk) 14:23, 30 May 2023 (UTC)

"If you want anything done properly around here, you have to do it yourself". 𝕁𝕄𝔽 (talk) 15:20, 30 May 2023 (UTC)

Number structure for networks table

The table says the number of digits is 15 - (cc + x) = 8 - 11, but both cc and x have a minimum of 1. That means the maximum length should be 15 - (1 + 1) = 13. Is there some kind of relationship between cc and x that means they have a minimum sum of 4? — Preceding unsigned comment added by 2001:4898:80E8:0:0:0:0:613 (talk) 17:26, 16 February 2016 (UTC)

Looks like this has been fixed

Cqexbesd (talk) 15:22, 10 February 2020 (UTC)

How do you put it on youtube so everyone can see Maswans1 (talk) 13:13, 14 April 2020 (UTC)

Change to max number length

As of this writing there is no evidence in corresponding ITU-T documents that the maximum phone number length has increased fom 15 since 2011/10. So I will rollback the change to 30 significant digits back to the previous version. Of course, this is up for debate. HerrFolgreich (talk) 12:22, 23 November 2016 (UTC)

References

End of Life?

AFAICT E164 is dead. At least in NL. see: http://enum.nl (all activity has been suspended, so no production status there) reverse lookups to e164.arpa seem to be dead as well. e164.org points to an insurance company in Austalia. — Preceding unsigned comment added by 2001:980:9008:666:192:168:6:24D (talk) 22:42, 6 May 2018 (UTC)

Edit "Numbering Formats" Section

Since the page is protected, I can't make the edit myself, but it is worth changing the tables in the "Number Formats" session to better indicate that the hyphen in sentences like "maximum 15 digits − number of digits in the Country Code" should actually be read as "minus" (i.e. [maximum 15 digits] minus [number of digits in the Country Code]). I was having trouble parsing the sentence because I was reading the minus as a dash/hypen. Kenileb (talk) 23:16, 17 April 2024 (UTC)

Semi-protected edit request on 8 July 2024

The link in the External Sources is no longer valid. I want to update the link to point to https://www.itu.int/rec/T-REC-E.164/en so that it will reference a valid webpage with the intended resources from the ITU, which the original link is from. Primetime42 (talk) 18:25, 8 July 2024 (UTC)

Done. OhNoitsJamie ^Talk 18:48, 8 July 2024 (UTC)