Area Code 610: Allentown and Surrounding Regions in Pennsylvania - area-code -

Frequently Asked Questions

Area code 610 covers southeastern Pennsylvania, including Allentown, Bethlehem, Easton, Reading, Chester, and West Chester. This region encompasses the Lehigh Valley and the western suburbs of Philadelphia, a strategically important area for logistics and distribution due to its proximity to major population centers in the US and Canada.
Area code 610 was created on January 8, 1994, as a split from the 215 area code due to the increasing demand for phone numbers. This split reflects the rise of technologies like fax machines and early cell phones coupled with population growth that strained the 215 area code's capacity. The split marked Pennsylvania's first new area code since the 1947 establishment of the North American Numbering Plan (NANP).
Due to overlay codes 484 and 835, ten-digit dialing is mandatory for all calls within the 610 area, even local ones. Dial the area code (610, 484, or 835) followed by the seven-digit phone number.
Area code 484 was added as an overlay to 610 on June 5, 1999, and 835 was implemented as a second overlay in September 2022. Overlays provide additional numbering capacity within the same geographic area as the original area code.
The 610 area code serves a population of over one million residents. Lehigh County, a major part of the 610 region, is experiencing rapid growth, especially in the 18-34 demographic, illustrating the area's economic vitality.
For domestic long-distance calls within the US, Canada, and other NANP countries, dial 1 followed by the 10-digit number. For international calls, dial your country's exit code, then 1, and finally, the 10-digit number.
The 610 area code is served by multiple providers offering landline, mobile, and internet services. Major landline providers include Verizon, MCI Worldcom, and XO Communications. Mobile services are offered by major carriers such as Verizon Wireless, AT&T, and Sprint.
The North American Numbering Plan Administration (NANPA) manages the allocation and assignment of area codes across North America, ensuring fair distribution. They oversee the numbering resources for area code 610, among others. You can find more information on the NANPA website.
According to Data USA, the median household income in Lehigh County is $66,214, and the median age is 39. This data highlights the economic and demographic characteristics of a significant portion of the 610 area code region.
To call a 610 number from a different area code, dial 1 + the 10-digit phone number (including the 610 area code). Remember, the 1 is necessary even if calling from a neighboring area code, due to overlaying.
The 610 area code's first overlay, 484, was added in 1999, necessitating 10-digit dialing. A second overlay, 835, was introduced in September 2022 to accommodate continued population growth and increasing demand for phone numbers.
Ten-digit dialing (area code + number) is mandatory in the 610 area code because of the overlaid area codes 484 and 835. Overlays share the same geographic region and require 10-digit dialing to differentiate between phone numbers.
Loading...