Telephone numbers in Finland
|Within Finland||Outside Finland|
|Before 1996||90 xxx xxx||+358 0 xxx xxx|
|After 1996||09 xxx xxx||+358 9 xxx xxx|
The default international access code became 00, although other codes such as 990-999 are also still used.
Geographic area codes
|013||Northern Karelia (Pohjois-Karjala / Norra Karelen)|
|014||Central Finland (Keski-Suomi / Mellersta Finland)|
|015||Mikkeli (Mikkeli / S:t Michel)|
|016||Lapland (Lappi / Lappland)|
|019||Nylandia (Uusimaa / Nyland)|
|02 (except 020)||Turku and Pori (Turku ja Pori / Åbo och Björneborg)|
|03||Tavastia (Häme / Tavastland)|
|05 (except 050)||Kymi (Kymi / Kymmene)|
|06 (except 060)||Vaasa (Vaasa / Vasa)|
|08 (except 080)||Oulu (Oulu / Uleåborg)|
|09||Helsinki (Helsinki / Helsingfors)|
|Premium-rate telephone numbers. (0700 series is for entertainment and 0600 is for services). Other premium codes exist and these sometimes confuse consumers as they may not know they are calling a premium number.|
|0800||Toll-free telephone numbers.|
Finnish mobile numbers start with 04x, 0457, 050 or 0500. The format for mobile telephone numbers is 04x 123 45 67 or 0457 1234567 or 050 123 45 67 or 0500 123456. When called from a different country, the format is + 358 4x 123 45 67 or + 358 50 123 45 67. Most commonly 7 digits are used for subscriber number, with normal range being from 4 to 8 digits.
The first three digits previously indicated the mobile operator but mobile number portability has been implemented and any prefix can now be associated with any operator, 040 (was owned by TeliaSonera) and 050 (was owned by Elisa, formerly Radiolinja) are most common prefixes. 042 and 045 0 were also owned by TeliaSonera, whereas 046 was owned by Elisa. Other major networks are DNA Finland (using then 041, 044 and other numbers in the 045 range) and Saunalahti (using numbers in the 045 range). Former operator codes include 043, which was used in DCS "city phones". Some of these may still be in use. The former NMT network numbers used operator code 049. Most NMT numbers were transferred to GSM numbers with format 04x0 123 456 or 0500 123 456, as there were only 6 subscriber numbers in NMT numbers.
The area code for fixed landline subscriptions in Kymi is 05, and should not be confused with mobile numbers starting with 050 or 0500.