what is the maximum length of phone number
Telephone numbering plan The International Telecommunication Union (ITU) has established a comprehensive numbering plan, designated E.164, for uniform interoperability of the networks of its member state or regional administrations. It is an open numbering plan, however, imposing a maximum length of 15 digits to telephone numbers. The standard defines a country calling code (country code) for each state or region which is prefixed to each national numbering plan telephone number for international destination routing.
Telephone numbers in Israel As recently as the 1990s, most telephone numbers in Israel had 6 digits (without area code digit). Currently there are 5 geographic area codes and 2 more non-geographic area codes, and numbers has 7 or 8 digits (without area code digit).