E.164 format

E.164 defines a format for international telephone numbers. Numbers are usually prefixed with the plus sign (+), include the international country calling code and are limited to a maximum of 15 digits.

Phone numbers include:

  • a + sign to indicate that the number is international
  • a country code, such as 44
  • a region code, such as 1234 (remove any leading digits, usually a zero, if applicable)
  • the subscriber number, such as 567890

Example telephone numbers in national and E.164 format

Country

National formatInternational format

UK

02072068888

+442072068888

Australia

0285993444

+61285993444

US

6463624888

+16463624888

Belgium

027933835

+3227933835

Ireland

015530073

+35315530073

Finland

0974790184

+358974790184

Norway

21953282

+4721953282

France

0170377180

+33170377180

Austria

01253010376

+431253010376

Netherlands

0207085097

+31207085097

Sweden

0850513830

+46850513830

Luxembourg

27860726

+35227860726

Denmark

32729282

+4532729282

Poland

221288260

+48221288260