Area codes · +1
Area code 412
Area code 412 is centred on Pittsburgh. We hold 5,360 allocated blocks for it across 32 rate centres, split 34% mobile, 52% landline and 14% VoIP.
The other area codes laid over 412
Area code 412 does not have Pittsburgh to itself. 1 other code — 878 — serves the same rate centres, laid over the same ground rather than dividing it. That is an overlay: a new code added when the old one ran out of numbers, covering the same streets. Two neighbours can hold different area codes, so the code says roughly when a number was issued rather than where it sits.
8781,658 blocks, 104 rate centres, mostly VoIP
Each holds its own blocks and its own carrier mix, so a 412 number and a 878 number from the same street can report different line types. Filtering Pittsburgh by area code needs all 2 of them.
412 is not confined to Pittsburgh itself: its blocks sit across 32 rate centres, named in the table below.
Pennsylvania is split across 15 area codes — 267, 484, 724, 717, 570, 412 and others. By allocated blocks 412 is the 7th largest of them, holding 8% of the Pennsylvania total.
Where 412 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Ptgsbnzn14 and Ptgsbnzn22 are shortened. Names are reproduced as recorded rather than expanded — the abbreviation is the key the block data is filed under.
| Rate centre | Blocks | Share of 412 |
|---|---|---|
| Pittsburgh | 1,934 | 36% |
| Ptgsbnzn14 | 257 | 5% |
| Ptgsbnzn22 | 253 | 5% |
| Pittsburgh | 235 | 4% |
| Pittsburgh | 226 | 4% |
| Ptgsbnzn15 | 219 | 4% |
| Ptgsbnzn10 | 190 | 4% |
| Pittsburgh | 188 | 4% |
| Pittsburgh | 186 | 3% |
| Pittsburgh | 169 | 3% |
| Pittsburgh | 162 | 3% |
| Pittsburgh | 154 | 3% |
| Ptgsbnzn12 | 128 | 2% |
| Ptgsbnzn17 | 126 | 2% |
| Ptgsbnzn13 | 123 | 2% |
| Ptgsbnzn18 | 114 | 2% |
| Ptgsbnzn11 | 102 | 2% |
| Ptgsbnzn20 | 100 | 2% |
| Ptgsbnzn21 | 80 | 1% |
| Ptgsbnzn19 | 76 | 1% |
| Clairton | 74 | 1% |
| Elizabeth | 74 | 1% |
| Ptgsbnzn16 | 69 | 1% |
| Greensburg | 24 | 0% |
8 further rate centres in 412 hold fewer blocks than these.
Carriers holding the most 412 blocks
Verizon Pennsylvania, Inc.659 blocks
Onvoy647 blocks
Verizon Wireless633 blocks
T-Mobile USA, Inc.368 blocks
Aerial Communications, Inc.289 blocks
Bandwidth284 blocks
The largest holder, Verizon Pennsylvania, Inc., has 12% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 412 number still reports the carrier it started with. Closing that gap needs a live query against the routing database. How line type is derived.
Check a single 412 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 412?
Area code 412 covers Pittsburgh. It is not the only code there: 878 is an overlay on the same rate centres, so a Pittsburgh number can start with any of them.
Is a 412 number a mobile or a landline?
It can be either, and the digits do not say which. North American mobile and landline numbers share the same ranges, so the answer comes from the carrier holding the block. In 412 the split runs 34% mobile, 52% landline and 14% VoIP, so landline is the most likely single answer.
Which carriers hold 412 numbers?
The largest holders are Verizon Pennsylvania, Inc., Onvoy, Verizon Wireless. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 412 numbers are there?
The code holds 5,360 allocated blocks in our copy of the numbering plan. A block is 1,000 or 10,000 consecutive numbers depending on how deeply it has been pooled, so 412 covers on the order of 5,360,000 possible numbers — most of which have never been issued to anyone.