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2023: returned to the pool of area codes available for future area code relief; 457: Louisiana (Shreveport–Bossier City, Monroe, Alexandria, Fisher, Tallulah, and most of northern Louisiana) September 25, 2025 [3] to be overlaid on 318; previously a fictitious area code assigned to identify Naked DSL/Dry Loop and dedicated data lines in ...
Area code 408 was split from area code 415 in 1959. The numbering plan area was reduced in geographic extent in 1998 for the creation of area code 831. In 2012, area code 669 was assigned as a second area code for same numbering plan area by overlay.
Defining the extent of an area is necessary in order to tabulate census data for that area. ZCTAs are generalized area representations of the United States Postal Service (USPS) ZIP code service areas, but are not the same as ZIP codes. Individual USPS ZIP codes can cross state, place, county, census tract, census block group and census block ...
Area code 303 is the original area code of the NPA, as well as for the entire state, reduced in geographic extent over time. Area codes 720 and 983 were added in 1998 and 2022, respectively, 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 ...
Area code 469 was introduced on July 1, 1999, in an overlay plan for most of the eastern portion of the Metroplex. At the same time, the 214/972 boundary was "erased," and 972 was converted into an additional overlay for the entire region. The result was three area codes overlaying the same area, with ten-digit dialing required for all calls.
Area code 630 is the parent area code of the numbering plan area, created in a three-way area code split of area code 708 on August 3, 1996, with the southern suburbs keeping 708 and the northern suburbs receiving 847. Within a decade, 630 was close to exhaustion due to the growth of the Chicago suburbs and the proliferation of cell phones and ...
In mitigation, area code 786 was installed as an overlay on March 1, 1998. [6] [7] [8] The overlay numbering plan area originally comprised only Miami-Dade County, although it was clear the remainder of area code 305 would eventually be overlaid with area code 786. [8] [9] Monroe County was added to area code 786 on September 1, 2001. [10] [11]
Marble Hill, a neighborhood of the borough of Manhattan, is physically located on the U.S. mainland, adjacent to the Bronx. Despite being legally a part of the borough of Manhattan, [20] per the Greater New York Charter of 1897, the neighborhood of Marble Hill is excluded from the Manhattan numbering plan areas 212, 646, and 332, instead using the 718, 347, and 929 area codes. [20]