BLACKWOOD prefixes in area code 856
NANPA records 20 assigned NXX blocks to rate center BLACKWOOD in area code 856, 3.0% of the 676 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 9 holders hold those blocks, the largest being VERIZON NEW JERSEY, INC. (5), PAETEC ITEL, LLC (4), ONVOY, LLC - NJ (3). The earliest assignment on record here is 2001-09-17 and the most recent 2026-09-21. 16 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 856-227 | Verizon VERIZON NEW JERSEY, INC. | – | no | yes |
| 856-228 | Verizon VERIZON NEW JERSEY, INC. | – | no | yes |
| 856-232 | Verizon VERIZON NEW JERSEY, INC. | – | no | yes |
| 856-245 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - NJ | – | yes | yes |
| 856-290 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 856-302 | Comcast COMCAST IP PHONE, LLC | – | yes | yes |
| 856-352 | Comcast COMCAST IP PHONE, LLC | 2011-06-30 | yes | yes |
| 856-373 | T-Mobile METROPCS, INC. | – | yes | yes |
| 856-374 | Verizon VERIZON NEW JERSEY, INC. | – | no | yes |
| 856-401 | Verizon VERIZON NEW JERSEY, INC. | – | yes | yes |
| 856-463 | NUSO, LLC | 2020-11-16 | yes | yes |
| 856-481 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | – | yes | yes |
| 856-618 | Onvoy ONVOY, LLC - NJ | 2023-01-13 | yes | yes |
| 856-637 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 856-657 | Onvoy ONVOY, LLC - NJ | 2026-02-26 | yes | yes |
| 856-677 | Windstream PAETEC ITEL, LLC | 2001-09-17 | yes | yes |
| 856-707 | Onvoy ONVOY, LLC - NJ | 2026-09-21 | yes | no |
| 856-718 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 856-827 | Lumen LEVEL 3 COMMUNICATIONS, LLC - NJ | – | yes | yes |
| 856-842 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | – | yes | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| VERIZON NEW JERSEY, INC. | Verizon | 5 | 25% |
| PAETEC ITEL, LLC | Windstream | 4 | 20% |
| ONVOY, LLC - NJ | Onvoy | 3 | 15% |
| COMCAST IP PHONE, LLC | Comcast | 2 | 10% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | Verizon | 2 | 10% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - NJ | AT&T | 1 | 5% |
| METROPCS, INC. | T-Mobile | 1 | 5% |
| NUSO, LLC | – | 1 | 5% |
| LEVEL 3 COMMUNICATIONS, LLC - NJ | Lumen | 1 | 5% |
Frequently asked
Which prefixes belong to BLACKWOOD in area code 856?
20 blocks: 227, 228, 232, 245, 290, 302, 352, 373, 374, 401, 463, 481 and 8 more, all listed in the table above.
Which carriers have numbers in BLACKWOOD?
VERIZON NEW JERSEY, INC. (5 blocks), PAETEC ITEL, LLC (4 blocks), ONVOY, LLC - NJ (3 blocks), COMCAST IP PHONE, LLC (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - NJ (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is BLACKWOOD a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.