Area codes 215, 267, and 445, Telephone prefix in Philadelphia, United States
Area codes 215, 267, and 445 are telephone prefixes for Philadelphia and parts of Bucks and Montgomery counties in southeastern Pennsylvania. The three numbering systems together cover millions of lines across the metropolitan region, connecting private households and businesses throughout the coverage zone.
Pennsylvania regulators introduced area code 215 in 1947 as one of the earliest regional designations in the United States. Growing demand for telephone lines later required the addition of area code 267 in 1997, followed by area code 445 in 2018.
These telephone codes connect over four million residents across five Pennsylvania counties, forming a communication network essential for local identity.
When calling Philadelphia or the surrounding counties, dial one of the three area codes before the seven-digit number. Since the introduction of multiple prefixes, it has become standard to enter all ten digits even for local calls to ensure correct connection.
Estimates suggest the capacity of the three combined area codes will meet regional telephone number needs until at least 2050. This long-term planning spares the metropolitan area from introducing a fourth prefix in the foreseeable future.
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