New Jersey area codes
New Jersey uses 10 area codes. The oldest is 201, in service since 1947; the newest is 640, from 2018. Across them 5,631 of 7,860 possible number blocks are allocated, 71.6% of capacity. 609, 732, 201 and 973 are at or past 95%, which is why new numbers there come from overlays rather than the original code. Verizon holds 40.3% of the 5,631 assigned blocks across the state, ahead of AT&T at 13.7%; a further 8.1% sits with CLEC and VoIP holders outside the national carriers. In the 33 days to 30 October 2026, FTC complaints named a New Jersey caller ID 7,303 times – 3.2% of all complaints in the window, most often 609 with 1,151 (23rd of 422 nationally). NANPA records 370 rate centers across the state's codes, and local calls take all ten digits.
All 10 codes
| Code | In service | Blocks used | Largest holder | Complaints | Shares area with |
|---|---|---|---|---|---|
| 201 | 1947 | 779/786 | Verizon 52.1% | 884 | 551 |
| 551 | 2001 | 300/786 | T-Mobile 24% | 648 | 201 |
| 609 | 1957 | 780/786 | Verizon 41% | 1,151 | 640 |
| 640 | 2018 | 134/786 | AT&T 26.1% | 239 | 609 |
| 732 | 1997 | 780/786 | Verizon 56.8% | 1,131 | 848 |
| 848 | 2001 | 291/786 | Onvoy 26.8% | 282 | 732 |
| 856 | 1999 | 676/786 | Verizon 37.3% | 1,042 | no overlay |
| 862 | 2001 | 391/786 | T-Mobile 24.3% | 418 | 973 |
| 908 | 1990 | 721/786 | Verizon 37.6% | 782 | no overlay |
| 973 | 1997 | 779/786 | Verizon 57% | 726 | 862 |
Block share is share of allocated number blocks, not of subscribers. Complaint counts cover 28 Sep – 30 Oct 2026 and reflect spoofed caller IDs as much as real calls.
How full New Jersey’s codes are
A code holds at most 786 blocks of 10,000 numbers each. When a code fills up, the administrator does not reclaim numbers – it adds an overlay, and from then on new numbers in the same area come from the new code.
Full or nearly full
Who holds the number blocks
Counted from every assigned block in the state: 5,631 blocks, each with the holder NANPA recorded for it. Percentages are measured, not estimated.
| Holder | Blocks | Share of New Jersey | Largest in |
|---|---|---|---|
| Verizon | 2,272 | 40.3% | 6 codes |
| AT&T | 769 | 13.7% | 1 code |
| T-Mobile | 632 | 11.2% | 2 codes |
| Other CLEC / VoIP | 457 | 8.1% | – |
| Lumen | 401 | 7.1% | – |
| Onvoy | 381 | 6.8% | 1 code |
| Windstream | 267 | 4.7% | – |
| Bandwidth | 121 | 2.1% | – |
| Altice | 67 | 1.2% | – |
| Brightspeed | 52 | 0.9% | – |
| Comcast | 47 | 0.8% | – |
| Peerless | 44 | 0.8% | – |
“Other CLEC / VoIP” is not one company: it is every holder outside the national carriers counted together, which is what resellers and app-based numbers look like in the records. This is allocation, not subscribers.
Spam complaints naming New Jersey codes
FTC Do Not Call complaints where the caller ID shown was a New Jersey number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are routinely faked, so these are complaints about the code, not calls proven to come from it.
How New Jersey got its codes
1 in the 1940s, 1 in the 1950s, 4 in the 1990s, 3 in the 2000s, 1 in the 2010s. Each code after the first was split off from or overlaid on one already in service.
- 1947 201 goes into service.
- 1957 609 goes into service, split from or overlaid on 201.
- 1990 908 goes into service, split from or overlaid on 201.
- 1997 732 goes into service, split from or overlaid on 908.
- 1997 973 goes into service, split from or overlaid on 201.
- 1999 856 goes into service, split from or overlaid on 609.
- 2001 551 goes into service, split from or overlaid on 201.
- 2001 848 goes into service, split from or overlaid on 732.
- 2001 862 goes into service, split from or overlaid on 973.
- 2018 640 goes into service, split from or overlaid on 609.
Time zones
New Jersey is in Eastern time.
Frequently asked about New Jersey area codes
How many area codes does New Jersey have?
10 in service. They are 201, 551, 609, 640, 732, 848, 856, 862, 908 and 973.
What is the oldest area code in New Jersey?
201, in service since 1947. Every later code in the state was split off from or overlaid on an existing one.
What is the newest area code in New Jersey?
640, from 2018, overlaying 609.
Is New Jersey running out of numbers?
609, 732, 201 and 973 are at or past 95% of capacity, but NANPA has not opened relief planning for them, so no new code is announced.
What time zone is New Jersey in?
Eastern time.
Which New Jersey area code gets the most spam complaints?
609 – 1,151 FTC complaints in the 33 days to 30 October 2026, 23rd of 422 codes nationally. Those are complaints about the caller ID shown, and spam callers routinely fake a local-looking number, so this says the code is imitated often, not that the calls come from there.
Which carrier holds the most New Jersey numbers?
Verizon, with 40.3% of the 5,631 blocks assigned across New Jersey, ahead of AT&T at 13.7%. This is allocation of blocks by the numbering administrator, not a count of subscribers – people keep their numbers when they switch carriers.
Do you have to dial 10 digits in New Jersey?
Yes. Every code in the state is in an overlay or ten-digit dialing area, so a local call needs the area code too. Dialing seven digits reaches a recording, not a wrong number.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- NANPA – CO Code Assignment Records, All States (utilized), file updated 11/01/2026, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
Figures on this page are counted from those files, not copied from other sites. Spotted an error? Request a correction. How we collect and check: methodology.