What is what area code is 484?

Area code 484 is a telephone area code in the North American Numbering Plan (NANP) for eastern Pennsylvania. It overlays area code 610, and together they cover the same geographic region. This region includes the https://www.wikiwhat.page/kavramlar/Lehigh%20Valley, the https://www.wikiwhat.page/kavramlar/Delaware%20Valley suburbs of Philadelphia, and areas along the **https://www.wikiwhat.page/kavramlar/Pennsylvania%20Turnpike**'s Northeast Extension. It serves cities and towns like Allentown, Bethlehem, Reading, and parts of Chester, Montgomery, and Bucks counties. The area code was introduced in 1999 as an overlay to 610 due to the increasing demand for telephone numbers in the region. A permissive dialing period was introduced at the same time where residents did not have to dial the area code, eventually leading to mandatory https://www.wikiwhat.page/kavramlar/Ten-Digit%20Dialing.