Area Code 2195 – Oslo
The phone area code for Oslo is 2195 (international format +472195). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 2195
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Oslo
Geographic Coverage and Administrative Jurisdiction
The Norwegian country code +47 is followed by the eight-digit national significant number (NSN) for fixed-line services. The prefix 2195 is a geographic National Destination Code (NDC) allocated within the Oslo numbering area. Oslo, the capital of Norway, is both a county and a municipality, and this prefix serves subscribers within the city's administrative boundaries. The Oslo fixed-line numbering plan is organized under several NDCs, with 21 being one of the primary designators for the capital region. The specific block 2195 is used for direct-dialed fixed-line subscribers, typically in central and eastern parts of the city, including districts such as Gamle Oslo, Grünerløkka, and Sagene.
Dialing Formats and Caller Instructions
For local callers within Norway, the number is dialed as an eight-digit sequence: 2195 XXXX (where XXXX is the subscriber's four-digit line number). No trunk prefix '0' is used in Norway; the NDC and subscriber number are always dialed together for domestic calls, regardless of origin. For international callers, the full E.164 format must be used: +47 2195 XXXX. When dialing from abroad, replace the '+' with the appropriate international access code (e.g., 00 from most European countries, 011 from North America). For example, a subscriber line ending in 1234 would be dialed as +47 2195 1234 from outside Norway.
Overlay and Numbering Plan Considerations
Norway does not use area code overlays in the traditional sense; instead, the country uses a closed numbering plan where all numbers are eight digits long. The NDC 21 covers the greater Oslo region, and within this NDC, multiple prefixes (such as 2195) are assigned to specific exchanges or operator blocks. Since 1992, Norway has allowed number portability for fixed-line services, meaning that a subscriber may retain their 2195 number even if they move to a different operator or, in some cases, relocate outside the original exchange area, though geographic portability is limited. Callers should be aware that the prefix does not guarantee the physical location of the line, but it remains associated with the Oslo tariff zone for billing purposes.
Practical Guidance for Local and Foreign Callers
For local callers, simply dial the eight-digit number. For foreign callers, ensure you have the correct country code (+47) and omit any leading zero that might appear in local directories. Calls to Norwegian fixed-line numbers are typically charged at standard international rates, which vary by provider. It is advisable to check with your telecom operator for specific tariffs. Emergency services (110 fire, 112 police, 113 medical) are always free and can be reached without any prefix.