Telephone numbering plan

A telephone numbering plan is a system used in telecommunications to give telephone numbers to customers and to route telephone calls in a telephone network. A closed numbering plan imposes a fixed length to numbers, such as in North America (10-digit). An open numbering plan may have telephone numbers that vary in length.

A dial plan establishes the type of telephone number in a given area. This includes country codes, access codes, area codes and all combinations of digits dialed. For instance, the North American public switched telephone network (PSTN) uses a phone numbers with a 3-digit area code and a 7-digit telephone number.

Other Languages
Alemannisch: Telefonvorwahl
azərbaycanca: Telefon kodu
беларуская (тарашкевіца)‎: Тэлефонны код
български: Телефонен код
Boarisch: Telefonvoawoi
bosanski: Pozivni broj
dansk: Nummerplan
Esperanto: Telefona kodo
Frysk: Netnûmer
hrvatski: Pozivni broj
Bahasa Indonesia: Kode telepon
македонски: Повикувачки број
Nederlands: Netnummer
Nedersaksies: Netnummer
oʻzbekcha/ўзбекча: Telefon raqamlash rejasi
Plattdüütsch: Telefonvörwahl
Ripoarisch: Vüürwaal
русиньскый: Телефонный код
srpskohrvatski / српскохрватски: Pozivni broj
Basa Sunda: Kode telepon
svenska: Riktnummer
татарча/tatarça: Telefon kodı
українська: Телефонний код
West-Vlams: Zonenummer