267 Area Code – Philadelphia, Pennsylvania: Location, Time Zone & History

Southeastern Pennsylvania's numbering plan tells a story of how quickly a growing region can outpace its own telephone infrastructure. The original 215 territory, covering Philadelphia and its Bucks, Montgomery, and Delaware county suburbs, was split off from 610 in 1994, yet within just two years it neared exhaustion again as the metro area's population expanded and cell phones and pagers proliferated. The solution, effective July 1, 1997, was an overlay rather than another geographic split: 267 was layered directly on top of the existing 215 territory, sharing the same footprint rather than carving out new boundaries. That decision meant local calls across the region shifted permanently to ten-digit dialing.

The overlay approach did not stop there. A second code, 445, was proposed as early as 2000 to relieve the combined 215/267 pool, but the plan stalled and was formally rescinded by the Pennsylvania Public Utility Commission in 2003. Demand eventually caught up, and 445 was activated on February 3, 2018, adding roughly 23 million numbers to a service area of about 4 million people, a supply expected to last well beyond 2050.

Beyond Philadelphia itself, the shared numbering territory reaches communities such as Norristown, Levittown, Bensalem, Abington, and Bristol. The regional economy supported by this numbering plan spans several sectors:

• Healthcare and biotech
• Higher education
• Finance and insurance
• Tourism and hospitality

Unlike 215, which became woven into Philadelphia's identity through music and tattoos, the newer overlay never developed that same cultural resonance among residents.