Area codes · +1
Area code 835
Area code 835 is centred on Allentown, Pennsylvania. We hold 1,064 allocated blocks for it across 29 rate centres, split 77% mobile, 2% landline and 21% VoIP.
The other area codes laid over 835
Area code 835 does not have Allentown to itself. 2 other codes — 484, 610 — serve 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.
Each holds its own blocks and its own carrier mix, so a 835 number and a 484 number from the same street can report different line types. Filtering Allentown by area code needs all 3 of them.
835 is not confined to Allentown itself: its blocks sit across 29 rate centres, named in the table below.
Pennsylvania is split across 15 area codes — 267, 484, 724, 717, 570, 835 and others. By allocated blocks 835 is the 15th largest of them, holding 2% of the Pennsylvania total.
Where 835 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Phphsbzn23 and Phphsbzn30 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 835 |
|---|---|---|
| Allentown | 338 | 32% |
| Phphsbzn23 | 161 | 15% |
| Phphsbzn30 | 160 | 15% |
| Bethlehem | 57 | 5% |
| Reading | 54 | 5% |
| Phphsbzn10 | 46 | 4% |
| Easton | 27 | 3% |
| Phphsbzn17 | 20 | 2% |
| Phphsbzn14 | 19 | 2% |
| Bally | 17 | 2% |
| Phphsbzn11 | 15 | 1% |
| Bath | 11 | 1% |
| Center Pt | 11 | 1% |
| Lehighton | 11 | 1% |
| Northamptn | 11 | 1% |
| W Chester | 11 | 1% |
| Bernville | 10 | 1% |
| Nazareth | 10 | 1% |
| Phphsbzn13 | 10 | 1% |
| Phphsbzn22 | 10 | 1% |
| Avondale | 9 | 1% |
| Catasauqua | 9 | 1% |
| Pottstown | 9 | 1% |
| Fleetwood | 6 | 1% |
5 further rate centres in 835 hold fewer blocks than these.
Carriers holding the most 835 blocks
AT&T Wireless546 blocks
Onvoy160 blocks
Omnipoint Communications Enterprises, Lp156 blocks
Verizon Wireless47 blocks
Eon Telecom, Inc.33 blocks
Onvoy Spectrum18 blocks
AT&T Wireless alone holds 51% of every block in 835, which is unusually concentrated for an area code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 835 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 835 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 835?
Area code 835 covers Allentown, Pennsylvania. It is not the only code there: 484, 610 are overlays on the same rate centres, so a Allentown, Pennsylvania number can start with any of them.
Is a 835 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 835 the split runs 77% mobile, 2% landline and 21% VoIP, so mobile is the most likely single answer.
Which carriers hold 835 numbers?
The largest holders are AT&T Wireless, Onvoy, Omnipoint Communications Enterprises, Lp. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 835 numbers are there?
The code holds 1,064 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 835 covers on the order of 1,064,000 possible numbers — most of which have never been issued to anyone.