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Area code 810 is a telephone area code in the North American Numbering Plan for the east-central part in the U.S. state of Michigan. The numbering plan area (NPA) comprises the cities of Flint , Lapeer , Port Huron , and the southern portion of the Thumb .
1993: Area code 810 was created in the first split of 313. 1997: Area code 734 was created in the second split of 313. and area code 248 was created in the first split of 810. 1999: Area code 231 was created in the second split of 616. 2001: Area code 586 was created in the second split of 810, and area code 989 was created in the first split ...
The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits.
Area code 248 was created in 1997 as a split from area code 810. In 2000, area code 947 was assigned as a relief area code for the area. [1] In 2001, it was approved as an all-services overlay plan in the 248 numbering plan area, [2] requiring ten-digit dialing after end of the permissive dialing period, which started on January 26, 2002.
In 1962, AT&T assigned area code 510, then designated as a Service Access Code (SAC) of the format N10, for conversion to dial service of the Teletypewriter Exchange Service (TWX) in the United States. [3] [4] Later in the decade, additional area codes, including 810 were assigned. NPA 810 served every U.S. point west of the Mississippi River.
Area code 541 was created in an area code split from area code 503 on November 5, 1995. ... 810 Klamath Falls: Klamath: May 18, 1998 812 Albany: Linn: January 11 ...
Area codes 805 and 820 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. The numbering plan area (NPA) includes most or all of the counties of San Luis Obispo , Santa Barbara , Ventura , and the southernmost portions of Monterey County . 805 was split from area code 213 in 1957, and area code ...
The area codes in the state of North Carolina are as follows: 252 - North Coastal Plain region in the northeast corner of the state, containing the Outer Banks (split from 919 in 1998) 910 / 472 - South Coastal Plain region in the southeast corner of the state, including Wilmington (split from 919 in 1993; 472 created as overlay beginning on ...