Please post your support by adding a comment here: https://issuetracker.google.com/issues/221095104 On Thu, 3 Mar 2022, Henning Westerholt wrote:
as usual the problem with standards is that there are many of them.
I can not comment about other countries, but even in Germany it's a bit messier as you described.
Most people in the telco world use E.164 or E.123 type for formatting to represent phone numbers. But many normal businesses use the national standard "DIN 5008". This extends E.123 with the usage of a dash to separate local extensions in international format, e.g.:
+49 123 123456-123
Many people recommend this format if the company is doing business mainly national, and E.123 if the company is doing business international.
I don't see a problem here. DIN 5008 is a German standard, which would be considered a National Format. I would fully support Google's libphonenumber of using such a standard for formatting National Numbers for Germany in that manner. However, it does NOT use this standard for National formatting. However, for people outside of Germany who want to write out its phone numbers, ITU E.123 standard for International Format should be followed. National: +49 123 123456-123 International: +49 123 123456 ext. 123 libphonenumber is NOT using DIN 5008 for National: <!-- Due to the high complexity of ranges in the German numbering scheme, the regular expressions here have been automatically simplified to reduce size. This means that in some cases there may be false positives (especially in fixed line ranges), but since German ranges differ so much by length anyway, false positives are already common. --> The Zoo Duisberg is at +4920360444250. Libphonenumber outputs expected results. - National Format: 0203 60444250 - International Format: +49 203 60444250 With extension: - National: 0203 60444250 ext. 134 - International: +49 203 60444250 ext. 134 Maybe you want to submit a request to Google's Libphonenumber to follow DIN 5008 for National! I would comment in support! I would be annoyed if libphonenumber did not follow my national standard. Beckman --------------------------------------------------------------------------- Peter Beckman Internet Guy beckman at angryox.com https://www.angryox.com/ ---------------------------------------------------------------------------