The 267 area code is Philadelphia and its nearer Pennsylvania suburbs — the exact same territory as 215. In service since July 1, 1999, it was one of the earliest all-services overlays in the United States, and today it is the code most new Philadelphia numbers actually carry.
Philadelphia is a second-code city: the code on the murals and the sports radio ads is 215, but the code on the new lines is 267. Understanding that split answers nearly every question people bring to this page.
One city, two working codes
267 covers Philadelphia proper plus its nearer Pennsylvania suburbs — mostly Bucks and Montgomery County territory (with slivers of Berks and Lehigh) that stayed with 215 when the western suburbs split off to 610 in 1994. Every 267 number is dialed, billed, and routed exactly like a 215 number, because both draw from one shared numbering region.
That is the defining feature of an overlay: it adds numbering capacity on top of an existing footprint instead of redrawing the map — the fix that replaced boundary-redrawing splits across the whole numbering plan.
The badge and the workhorse
215 is one of the originals — assigned in 1947, when the first numbering plan gave Pennsylvania just four codes, and it covered the entire southeastern corner of the state. Decades of demand pared it down: the January 1994 split sent the Lehigh Valley, Reading, and Philadelphia’s western suburbs to 610.
Even that wasn’t enough. Cell phones and pagers were burning through numbers so fast that on July 1, 1999, area code 267 entered service as an overlay on 215 — one of the earliest all-services overlays in the country, following Maryland’s 240, which in 1997 had become the first code to overlay every service class (New York’s 917 had trialed the overlay idea for cellphones and pagers back in 1992). No existing number changed; new assignments simply started drawing from the 267 pool.
The result, nearly three decades on: 215 reads as the legacy badge — the code of institutions, old family businesses, and anyone who has kept a number since the nineties — while 267 is the workhorse that Philadelphia actually hands out. Boston runs the same dynamic with its guarded 617 code; prestige attaches to the original, capacity lives in the overlay.
445: the third layer
Growth didn’t stop. With 267 itself projected to exhaust, the Pennsylvania Public Utility Commission approved a second overlay in November 2016, and new 445 numbers could begin service on March 3, 2018. (445 had actually been proposed for the region back in 2000, then shelved in 2003 when number pooling bought time.)
So the stack today is 215 → 267 → 445, oldest to newest, all covering identical ground. A new Philadelphia line might arrive with any of the three, though fresh inventory increasingly means 267 or 445.
Is a 267 number really Philadelphia?
Yes — unambiguously. A 267 number is issued for the same rate centers, the same streets, and the same suburbs as a 215 number. The cheesesteak shop with a 267 line is no less local than the law firm with a 215 one; the only difference is when the number was assigned.
The doubt usually runs the other way at the region’s edges: South Jersey across the Delaware River uses 856, and Wilmington sits in Delaware’s statewide 302 area code — so “Philadelphia metro” spans several codes, but 267 itself is strictly the Pennsylvania core.
The cold call wearing 267
Context first: the region’s routine 267 traffic looks like any big city’s — health systems, universities, school districts, contractors, delivery drivers — skewed toward newer lines, since that is what the code contains.
Then the rule that holds for every code: the display is not evidence. Numbers port freely, VoIP dials from wherever the softphone lives, and caller ID spoofing can paint 267 — or your own prefix, via neighbor spoofing — onto a call placed continents away. A local-looking code is not a trust signal. Hang up; call back on a line you find through the organization’s own site — that habit beats every variant of the scam.
Provisioning Philadelphia numbers today
For a business selling into Philadelphia, the overlay is good news: 215 inventory is scarce, but 267 numbers are readily available and carry the identical local meaning on caller ID. That is the whole mechanism behind local presence dialing — Philadelphia customers answer Philadelphia numbers, and the network treats 267 as exactly that.
SIPNEX opens Philadelphia rate-center inventory, hands it to your PBX or dialer over SIP, and signs each outbound call at full A-level attestation under its own certificate.
Frequently asked questions
Is 267 a Philadelphia area code?
Yes. 267 has served Philadelphia and its nearer Pennsylvania suburbs since July 1, 1999, as an overlay on 215 — the same territory, dialing, and cost. It is not a satellite region or a different city; it is Philadelphia’s second working code. See how overlays work for the mechanics.
Why did my new Philly number come with 267 instead of 215?
Because 215’s pool is largely spoken for. The original 1947 code filled up decades ago, which is why 267 was overlaid in 1999 and 445 in 2018. New lines draw from whatever prefixes remain available, and that increasingly means the newer codes. The number is equally local — just younger.
Do carriers still have 215 numbers in stock?
Sometimes — carriers occasionally hold 215 inventory in specific rate centers, and existing 215 numbers can be ported between providers. But there is no guaranteed supply, and most new Philadelphia assignments come from 267 or 445. If the 215 badge matters to your brand, ask about current inventory rather than assuming availability.
Is 445 the same region as 267 and 215?
Yes — 445 is the third overlay on the identical Philadelphia-area footprint, approved by the Pennsylvania PUC in 2016, with new numbers in service from March 3, 2018. All three codes cover the same ground and rate as local to each other; 445 is simply the newest pool.
SIPNEX is an FCC-licensed carrier providing Philadelphia DIDs and local numbers across US area codes, toll-free numbers as a registered RespOrg, and high-volume SIP trunking — every call signed with our own STIR/SHAKEN certificate. Call (833) 665-2220, talk to an operator, or see rates.
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