 | This article's factual accuracy may be compromised due to out-of-date information.(August 2017) |
The Numbering Resource Utilization/Forecast Report (also referred to as the NRUF Report) is a semiannual report compiled by the North American Numbering Plan Administration, based on information provided by the telecom industry following United States Federal Communications Commission (FCC) rules.
The primary purposes of the NRUF report are to a) forecast the exhaust of each area code in the North American Numbering Plan, and b) to forecast the exhaust of the NANP as a whole. Other uses are made of the report as well, especially in cases of mergers between phone companies, to determine the effects of a proposed merger on the competitive nature of the industry.
U.S. Carriers holding any Central Office Codes are required to submit information regarding their own numbering resource usage to the NANPA twice yearly, by February 1 and August 1 of each year, as required under CFR Title 47, Volume 3, Section 52 (f)(6)(i). [1] Carriers that fail to submit the required information are at risk of having further requests for numbering resources being denied.
Canadian Carriers are similarly compelled by regulation to submit NRUF data to the Canadian Radio-television and Telecommunications Commission (CRTC) on an annual basis, no later than December 15 of each year [2] (these reports would be relayed on the 1st NRUF report issued by NANPA for the following year).
Following the submission of information from carriers, NRUF reports are compiled and generally are released around the 15th of the month in which reports are due. As released by NANPA, the reports for individual NPA exhaust are sorted by physical location, area code, and exhaust date; also included is information from previous NRUF reports (for the previous six reports), as well as a change from the previous report in terms of a given NPA's exhaust date.
A report detailing the remaining lifespan of the NANP is issued as well, which details the methods used to determine the exhaust date, comparison information and how it relates to the actual estimate, and the final estimate of the exhaust for the Numbering Plan. When the remaining lifetime is estimated to be over 30 years, a date will be given in the report.
The latest reports for the NRUF process are available from on the NANPA website.
As an example, a forecast released in April 2024 for a reporting period ending March 10, 2024, predicted, at the time of the forecast, there were:
All other NPAs were projected to exhaust in 2030 or later.
The forecast exhaust for the full NANP at the time of the report was beyond the year 2045. However, a sensitivity analysis — which utilizes a higher gross demand for numbering resources of 7,050 Central Office (CO) codes per year, as opposed to the actual estimate of 6,000 — performed as part of the report reflected an exhaust in the year 2047.
The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the telephone country code 1. Some North American countries, most notably Mexico, do not participate with the NANP.
Area codes 920 and 274 are telephone area codes in the North American Numbering Plan (NANP) for a large area of eastern Wisconsin. Area code 920 was created on July 26, 1997, in a split of area code 414, one of the original North American area codes of 1947. 274 was added to the same numbering plan area (NPA) on May 5, 2023 to create an area code overlay.
Area codes 702 and 725 are telephone area codes in the North American Numbering Plan (NANP) for Clark County, including Las Vegas, in the U.S. state of Nevada. Area code 702 was one of the original North American area codes established in October 1947, and serviced the entire state of Nevada until 1998, when it was reduced to Las Vegas and the surrounding area. In 2014, area code 725 was added as an overlay plan covering the same area.
Area code 952 is the telephone area code in the North American Numbering Plan (NANP) for the southwestern suburbs of Minneapolis-St. Paul in the U.S. state of Minnesota. The numbering plan area (NPA) includes cities such as Bloomington, Eden Prairie, Edina and Minnetonka. It was created in 2000 along with area code 763 when they were carved out of area code 612, which now only contains Minneapolis and a few inner-ring locales.
Area code 564 is a telephone overlay area code in the North American Numbering Plan (NANP) for Western Washington state, including metropolitan Seattle. The area code was first proposed in 1999 to relieve telephone number shortages in area code 360, but implementation was delayed until 2017, when it was installed for an overlay complex that comprises only the numbering plan area 360. Neighboring area codes 206, 253, and 425 were slated for expansion of the overlay upon exhaustion of central office codes in each NPA. In 2023, area code 206 was approved for expansion with a guide line for preparation of inclusion of at least nine months. Ten-digit dialing has been mandatory in all of western Washington since July 29, 2017.
Area code 308 is the telephone area code in the North American Numbering Plan for western Nebraska. It was created on July 1, 1954, by splitting the numbering plan area (NPA) 402 along a roughly S-shaped boundary line from the western half of the Nebraska–South Dakota border to the approximate center of the Nebraska–Kansas border. A roughly 50-mile segment of the line running northeast to southwest in the eastern third of the state follows the Platte River.
Area codes 306, 639, and 474 are telephone area codes in the North American Numbering Plan (NANP) for the entire Canadian province of Saskatchewan. Area code 306 is one of the original North American area codes assigned in 1947. Area codes 639 and 474 were added to the numbering plan area in creation of an overlay complex for the entire province in 2013 and 2021, respectively. The incumbent local exchange carrier is SaskTel.
Area code 906 is the telephone area code in the North American Numbering Plan (NANP) for the Upper Peninsula of Michigan.
Area code 334 is a telephone area code in the North American Numbering Plan (NANP) for southeastern Alabama. It was created on January 15, 1995, in an area code split from area code 205. It was the first new area code in Alabama since the announcement of the area code system in 1947. To permit a transition period for the reconfiguration of equipment, such as computers and fax machines, use of area code 205 continued in the 334 region through May 13, 1995.
Area codes 214, 469, 972, and 945 are telephone area codes in the North American Numbering Plan (NANP) for Dallas, Texas and most of the eastern portion of the Dallas–Fort Worth metroplex. The area codes are assigned in an overlay complex to a single numbering plan area that was the core of one of the original area codes of 1947, area code 214.
Area code 509 is the telephone area code in the North American Numbering Plan (NANP) for the eastern part of the U.S. state of Washington. The numbering plan area (NPA) roughly comprises the state east of the Cascade Mountains, and includes Spokane, the Tri-Cities, Ellensburg, Yakima, Walla Walla, and Wenatchee. The area code was assigned in a split of area code 206 in 1956.
Area code 660 is the telephone area code in the North American Numbering Plan (NANP) for the northern and western part of the U.S. state of Missouri. It was created on October 12, 1997, in a split of the 816 numbering plan area (NPA)
Area code 712 is the telephone area code in the North American Numbering Plan (NANP) for the most western part of Iowa, including the cities of Spencer, Le Mars, Sioux City, Council Bluffs, Red Oak, Sheldon, Storm Lake, Carroll, Sac City, and Shenandoah.
Area code 401 is the sole telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Rhode Island. 401 is one of the original North American area codes, which were established in 1947.
Area codes 513 and 283 are telephone area codes in the North American Numbering Plan (NANP) for the southwest of the U.S. state of Ohio, including Cincinnati and surrounding cities, such as Forest Park, Hamilton, Lebanon, West Chester, Mason, Maineville, Middletown, Milford, Norwood, Oxford, Harrison, Cleves, Miamitown and Trenton.
Area codes 303, 720 and 983 are telephone area codes in the North American Numbering Plan for the north-central portion of the U.S. state of Colorado. The numbering plan area comprises Denver and Boulder, as well as their surrounding suburbs, including Lakewood, Littleton, Longmont, Broomfield, Aurora, and Castle Rock. Area code 303 is the original area code, while area codes 720 and 983 were added to form an overlay complex for the area, meaning that the same geographic service area is served by all area codes and that ten-digit dialing is required for all calls made within the service area.
Area codes 816 and 975 are telephone area codes in the North American Numbering Plan (NANP) for most of the Missouri side of the Kansas City metropolitan area, the St. Joseph area, and all or part of 15 surrounding counties in northwestern Missouri. The numbering plan area originally comprised most of the northern and western two-thirds of the state, bordering with Arkansas, Illinois, Iowa, Kansas, Nebraska, and Oklahoma, but has been reduced to a ribbon bordering Kansas. 816 is one of the original 86 area codes created in 1947. The numbering plan area was converted to an overlay complex with area code 975 in 2023.
Area codes 870 and 327 are telephone area codes in the North American Numbering Plan (NANP) for southern, eastern, and most of northern Arkansas. 870 was created on April 14, 1997 in a split from area code 501, Arkansas's original area code of 1947 and 327 was added as part of an overlay complex in 2024.
Area code 864 is a telephone area code in the North American Numbering Plan (NANP) for the western third of the U.S. state of South Carolina. The numbering plan area (NPA) comprises the areas of Greenville, Spartanburg, Anderson, and twelve surrounding counties. Other cities in the 864 territory include Clemson, Gaffney, Greer, and Mauldin. It is largely coextensive with the Upstate region.