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Area codes 801 and 385

From Wikipedia, the free encyclopedia

A map of Utah with the 801 and 385 area code overlay highlighted in red
A map of Utah with the 801 and 385 area code overlay highlighted in red
The original 801 area code, as shown on a 1952 map.
The original 801 area code, as shown on a 1952 map.

Area codes 801 and 385 are area codes in the North American Numbering Plan serving Salt Lake City and the four surrounding counties of the Wasatch Front in north-central Utah. The numbering plan area covers Davis, Morgan, Salt Lake, Utah, and Weber counties. Besides Salt Lake City, major towns and cities within the area are Alta, American Fork, Bountiful, Layton, Lehi, Murray, Ogden, Orem, Provo, Sandy, South Jordan, Spanish Fork, Taylorsville, West Jordan, and West Valley City. This numbering plan area is located in the Mountain Time Zone.

Area code 801 was one of the original area codes created in 1947, and covered the entire state of Utah. Area code 385 is an overlay to the same numbering plan area which commenced service on June 1, 2008.

On September 21, 1997,[1] the 801 area code was restricted to the Wasatch Front, while the rest of Utah was assigned area code 435, causing 801 to become an enclave area code and also became one of the six pairs of doughnut area codes in the numbering plan. This split was originally intended to be a long-term solution. However, the Wasatch Front is not only home to most of Utah's landlines, but also the great majority of its pagers, cell phones and fax machines. The number shortage was exacerbated by the fact that most of Utah is a single LATA, meaning that several numbers outside the Wasatch Front were not available for use. As a result, within only two years 801 was close to exhaustion once again.

In 2000, the Public Service Commission of Utah (PSC) approved a split for 801 to take effect in 2001, in which Salt Lake County would have retained the 801 area code and the rest of the Wasatch Front would have been assigned area code 385.[2] Conservation measures, such as number pooling, postponed the split for more than seven years.[3]

In July 2007, the PSC announced that the capacity created by the conservation measures would be exhausted by June 2008, finally necessitating the implementation of area code 385. The same announcement stated that 385 would be implemented as an overlay rather than a split, so that the Wasatch Front would be served by both area codes. Everyone who already had an 801 number could keep it. 385 entered service on June 1, 2008, with a year-long permissive dialing period beginning during which seven and ten-digit calls could be completed. Ten-digit dialing became mandatory along the Wasatch Front on June 1, 2009.[3][4]

While 801 is still the predominant area code in the region for land lines, 385 is being adopted quickly by wireless providers.[citation needed]

See also


  1. ^ "Archived copy". Archived from the original on 2006-02-16. Retrieved 2006-03-04.CS1 maint: archived copy as title (link)
  2. ^ New "2-way Split" Relief Alternative Approved for 801 Area Code Archived June 7, 2007, at the Wayback Machine, NANPA, 31 December 2000. Accessed 13 July 2007.
  3. ^ a b Order Selecting Area Code Overlay, and Reversing April 13, 2000 Order Selecting Area Code Split Archived October 11, 2007, at the Wayback Machine, Public Service Commission of Utah, 12th of July, 2007. Accessed 13 of July, 2007.
  4. ^ 385 area code = 10-digit dialing, Utah Public Service Commission Accessed 9th of July, 2008.

External links

Utah area codes: 385/801, 435
North: 435
West: 435 Area Codes 385/801 East: 435
South: 435

This page was last edited on 19 February 2020, at 05:55
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