| Area code | Year created | Parent NPA | Overlay | Numbering plan area |
|---|---|---|---|---|
| 218 | 1947 | – | northern portion of the state | |
| 612 | 1947 | – | – | Minneapolis, Richfield, Fort Snelling, and Saint Anthony |
| 507 | 1954 | 218, 612 | 507/924 | southern third of the state[1] |
| 924 | 2024 | 507 | ||
| 320 | 1996 | 612 | – | about the central third of the state except for the greater Minneapolis-Saint Paul area |
| 651 | 1998 | 612 | – | Saint Paul, eastern suburbs of the Minneapolis-Saint Paul metropolitan area, and communities along the Mississippi River down to Wabasha |
| 763 | 2000 | 612 | – | northwestern suburbs of Minneapolis |
| 952 | 2000 | 612 | – | southwestern suburbs of Minneapolis plus Apple Valley and Lakeville |
History
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When the American Telephone and Telegraph Company (AT&T) created the first nationwide telephone numbering plan for Operator Toll Dialing in 1947 to automate and speed the connection of long-distance calls, the United States and Canada were divided into 86 geographic numbering plan areas (NPAs) and assigned the original North American area codes. Minnesota was divided into a south-eastern area including the Twin-Cities with area code 612 and the rest of the state in the south-west, north, and north-east with area code 218.[2] In 1954, the southern half of 612 was designated a separate numbering plan area with area code 507 as the third area code for the state.
See also
References
- ↑ Wagner, Jeff (2024-02-06). "How are new area codes created? And what part of Minnesota could be next on the list? - CBS Minnesota". www.cbsnews.com. Retrieved 2024-02-07.
- ↑ Mabbs, Ralph (Winter 1947–1948). "Nation-Wide Operator Toll Dialing—the Coming Way". Bell Telephone Magazine. 26 (4): 181. Retrieved 2023-08-08.