6xxområden

6xxområden, often referred to as area codes or prefix codes, are numerical designations used in telephony systems to identify specific geographic regions or service types. In Sweden, the prefix 06 is part of the national numbering plan. Numbers beginning with 06 are used for telephone services within a designated geographical area, primarily in the northern parts of Sweden.

The 06xx prefix is divided into several smaller area codes, each covering a particular county or group of municipalities. For instance, areas like Västernorrland, Jämtland, and parts of Västerbotten and Gävleborg counties fall under the 06xx umbrella. The specific number following the '6' further refines the geographical location within these larger regions. For example, 060 is associated with Sundsvall and its surroundings, while 063 covers Östersund.

When making a telephone call within Sweden to a number starting with 06, the caller must dial the full prefix, including the leading zero. If calling from abroad, the Swedish country code (+46) would be used, followed by the 06xx area code, omitting the leading zero. This system allows for efficient routing of calls and management of the telephone network by clearly defining the origin of a subscriber's line. The numbering plan is managed by the Swedish Post and Telecom Authority (PTS).