Area codes 610 and 484 are telephone area codes which serve the Eastern and Southeast regions of Pennsylvania. The area includes the cities of Allentown, Bethlehem, and Reading, along with much of the Delaware Valley (excluding Philadelphia), including most of the Pennsylvania Main Line. Created in anticipation of number exhaustion in the area code 215 serving the whole of southeast Pennsylvania, area code 610 was split off on the morning of January 8, 1994, with a year-long permissive dialing period ending on the morning of January 7, 1995.[1] Further growth in the region over the subsequent five years spurred the introduction of overlay plans in the Commonwealth, with area code 484 being overlaid upon 610 on June 5, 1999, along with the introduction of mandatory ten-digit dialing.[2]
Area code 835 was to be an additional overlay onto 610 and 484, announced by the Pennsylvania Public Utility Commission in May 2000 and to be implemented in 2001, but newly developed, more efficient number pooling measures were introduced in its stead, obviating the need for the new area code. The Commission formally withdrew plans for the new code on June 23, 2005, although the code remains reserved for later use within the Commonwealth if necessary.[3]
Counties served
See also
References
External links
| Commonwealth of Pennsylvania Area Codes: 215, 267, 412, 484, 570, 610, 717, 724, 814, 835, 878 |
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North: 570 |
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| West: 717 |
610/484 |
East: 215/267, 856, 609, 908 |
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South: 302, 410/443, 856 |
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| State of Delaware Area Code: 302 |
| State of Maryland Area Codes: 240, 301, 410, 443 |
| State of New Jersey Area Codes: 201, 551, 609, 732, 848, 856, 862, 908, 973 |
Coordinates: 40°05′10″N 75°21′25″W / 40.086°N 75.357°W / 40.086; -75.357
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