Area Code 267 – Pennsylvania
The phone area code for Pennsylvania is 267 (international format +1267). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 267
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Pennsylvania
Overview of Area Code 267
Area code 267 is a geographic North American Numbering Plan (NANP) code serving the southeastern region of Pennsylvania, primarily the city of Philadelphia and its surrounding suburbs. It is an overlay code for the original area code 215, which was introduced in 1947 as one of the original area codes. Due to the exhaustion of available numbers in the 215 region, area code 267 was activated on January 31, 1999, providing additional numbering capacity for the same geographic area. In 2018, a second overlay, area code 445, was added to the same region, ensuring a continued supply of numbers. Consequently, the region now requires 10-digit dialing for all local calls, even within the same area code.
Geographic Coverage and Jurisdiction
The 267 area code covers Philadelphia County, which is coterminous with the city of Philadelphia, as well as parts of Bucks, Montgomery, and Delaware counties. Key municipalities served include Philadelphia, Lower Merion Township, Cheltenham, Abington, Bensalem, and Norristown. The region is densely populated and includes major business districts, educational institutions, and healthcare facilities.
Dialing Formats and Instructions
For local callers within the 215/267/445 overlay region, all calls must be placed using the 10-digit format: area code + central office code + subscriber number (e.g., 267-555-0123). For callers from outside the overlay area but within the United States or Canada, the international format is not required; simply dial 1 + area code + number (e.g., 1-267-555-0123). For international callers, the format is +1 267 555 0123 (or +12675550123).
Numbering and Regulatory Notes
Area code 267 is assigned to both landline and mobile services, as well as VoIP providers. Because it is an overlay, there is no geographic split; all numbers within the region share the same local calling area. The Pennsylvania Public Utility Commission (PUC) regulates numbering resources in the state, and the North American Numbering Plan Administrator (NANPA) oversees the assignment of prefixes. When calling from abroad, the country code for the United States is +1, and the trunk prefix 011 is used for international dialing from within the US.
For businesses, having a 267 number can establish a local presence in the Philadelphia market. For residents, it is essential to update contacts and ensure that all devices support 10-digit dialing. Remember that when traveling internationally, you must include the +1 country code and drop any leading trunk prefix.