Source note · E.164 numbering and dial string normalization
libphonenumber documents that in Italy the leading zero of a domestically formatted number is part of the number and is kept in international format (for example +39 0…), so stripping a trunk zero is not a universal normalization rule.
Checked 2026-09-23
- Vendor
- Product
- libphonenumber
- Subsystem
- normalization pitfalls
- Deployment
- library
- Region
- it
- Release range
- master as of 2026-09-23
- Checked
- 2026-09-23
Sources
- Falsehoods Programmers Believe About Phone Numbers — Google · tier 3 vendor-maintained repositories · Falsehood 21: A leading zero in numbers formatted for domestic usage can always be discarded
Cite this note
APA
WarmTransfer. (2026, September 23). E.164 numbering and dial string normalization: source note e164-numbering-italy-leading-zero. WarmTransfer. https://warmtransfer.net/knowledge/claims/e164-numbering-italy-leading-zero
BibTeX
@misc{warmtransfer-claim-e164-numbering-italy-leading-zero,
title = {E.164 numbering and dial string normalization: source note e164-numbering-italy-leading-zero},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/e164-numbering-italy-leading-zero},
note = {Source note e164-numbering-italy-leading-zero, checked 2026-09-23}
}