Source note · E.164 numbering and dial string normalization
ITU-T E.123 (02/2001), the Recommendation on notation for national and international telephone numbers, is in force together with Erratum 1 (05/2008), Erratum 2 (06/2022) and Amendment 1 (05/2008).
Checked 2026-09-23
- Vendor
- ITU-T
- Product
- Recommendation E.123
- Subsystem
- notation
- Deployment
- standard
- Region
- not restricted
- Release range
- current as of 2026-09-23
- Checked
- 2026-09-23
Sources
- E.123 : Notation for national and international telephone numbers, e-mail addresses and web addresses — ITU-T · tier 1 standards and regulators · Version rows marked In force
Cite this note
APA
WarmTransfer. (2026, September 23). E.164 numbering and dial string normalization: source note e164-numbering-e123-in-force. WarmTransfer. https://warmtransfer.net/knowledge/claims/e164-numbering-e123-in-force
BibTeX
@misc{warmtransfer-claim-e164-numbering-e123-in-force,
title = {E.164 numbering and dial string normalization: source note e164-numbering-e123-in-force},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/e164-numbering-e123-in-force},
note = {Source note e164-numbering-e123-in-force, checked 2026-09-23}
}