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Pages for logged out editors learn more. Contributions; Talk; List of South Dakota area codes
This macro is placed on the primary listing page for all the area codes in each state or country in the North American Numbering Plan. If there is more than one area code for a state, it should link the state to a page such as [[List of Idaho area codes|Idaho]]. Where there is a page listing all area codes for that state or country, each area ...
Area code 605 is the telephone area code in the North American Numbering Plan for the entire U.S. state of South Dakota. The numbering plan area was designated in 1947, when the American Telephone and Telegraph Company (AT&T) devised a comprehensive telephone numbering plan for the United States and Canada.
For example, 234 235-5678 is a valid telephone number; with area code 234, central office prefix (exchange) 235, and line number 5678. The number 234 911-5678 is invalid, because the central office code must not be in the form N11.
Download as PDF; Printable version; In other projects Wikidata item; ... Help. Pages in category "Area codes in South Dakota" This category contains only the ...
A telephone prefix is the first set of digits after the country, and area codes of a telephone number. In the North American Numbering Plan countries (country code 1), it is the first three digits of a seven-digit local phone number, the second three digits of the 3-3-4 scheme. In other countries, both the prefix and the number may have ...
Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, but also sometimes referred to as country dial-in codes, or historically international subscriber dialing (ISD) codes in the U.K., are telephone number dialing prefixes for reaching subscribers in foreign countries or areas via international telecommunication networks.
Users can now switch carriers and keep their cell phone numbers, including prefix. An additional digit has been added to the code of every carrier. Making a single code per carrier, after each carrier had to have multiple codes. And making the NSN 10 digits after it was 9.