Area codes · +1
Area code 640
Area code 640 is centred on Atlantic City, New Jersey. We hold 1,324 allocated blocks for it across 35 rate centres, split 58% mobile, 2% landline and 40% VoIP.
The other area codes laid over 640
Area code 640 does not have Atlantic City, New Jersey to itself. 1 other code — 609 — 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.
6095,988 blocks, 50 rate centres, mostly landline
Each holds its own blocks and its own carrier mix, so a 640 number and a 609 number from the same street can report different line types. Filtering Atlantic City, New Jersey by area code needs all 2 of them.
640 is not confined to Atlantic City, New Jersey itself: its blocks sit across 35 rate centres, named in the table below.
New Jersey is split across 10 area codes — 609, 732, 856, 201, 908, 640 and others. By allocated blocks 640 is the 10th largest of them, holding 3% of the New Jersey total.
Where 640 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Atlntic Cy and Lawrencevl 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 640 |
|---|---|---|
| Atlntic Cy | 184 | 14% |
| Lawrencevl | 183 | 14% |
| Pleasantvl | 131 | 10% |
| Princeton | 75 | 6% |
| Trenton | 64 | 5% |
| Allentown | 63 | 5% |
| Barnegat | 54 | 4% |
| Cranbury | 54 | 4% |
| Mountholly | 43 | 3% |
| Wildwood | 36 | 3% |
| New Egypt | 35 | 3% |
| Burlington | 33 | 2% |
| Medford | 33 | 2% |
| Hammonton | 30 | 2% |
| Capmaycths | 29 | 2% |
| Beachhaven | 22 | 2% |
| Florence | 22 | 2% |
| Plainsboro | 22 | 2% |
| Pemberton | 21 | 2% |
| Egg Harbor | 20 | 2% |
| Seais City | 20 | 2% |
| Tuckerton | 17 | 1% |
| Mays Ldg | 14 | 1% |
| Ewing | 13 | 1% |
11 further rate centres in 640 hold fewer blocks than these.
Carriers holding the most 640 blocks
AT&T Wireless449 blocks
Onvoy333 blocks
Omnipoint Communications Enterprises, Lp105 blocks
Verizon Wireless102 blocks
Onvoy Spectrum72 blocks
Bandwidth49 blocks
The largest holder, AT&T Wireless, has 34% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 640 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 640 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 640?
Area code 640 covers Atlantic City, New Jersey. It is not the only code there: 609 is an overlay on the same rate centres, so a Atlantic City, New Jersey number can start with any of them.
Is a 640 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 640 the split runs 58% mobile, 2% landline and 40% VoIP, so mobile is the most likely single answer.
Which carriers hold 640 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 640 numbers are there?
The code holds 1,324 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 640 covers on the order of 1,324,000 possible numbers — most of which have never been issued to anyone.