MILLBURN prefixes in area code 973
NANPA records 17 assigned NXX blocks to rate center MILLBURN in area code 973, 2.2% of the 779 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. 7 holders hold those blocks, the largest being VERIZON NEW JERSEY, INC. (8), LEVEL 3 COMMUNICATIONS, LLC - NJ (2), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2). The earliest assignment on record here is 2001-07-18 and the most recent 2025-09-03. 12 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area code 862 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 973-218 | Verizon VERIZON NEW JERSEY, INC. | – | yes | yes |
| 973-232 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 973-258 | Verizon VERIZON NEW JERSEY, INC. | – | no | yes |
| 973-314 | Lumen LEVEL 3 COMMUNICATIONS, LLC - NJ | – | yes | yes |
| 973-315 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 973-346 | Onvoy ONVOY, LLC - NJ | – | yes | yes |
| 973-376 | Verizon VERIZON NEW JERSEY, INC. | – | no | yes |
| 973-379 | Verizon VERIZON NEW JERSEY, INC. | – | no | yes |
| 973-467 | Verizon VERIZON NEW JERSEY, INC. | – | no | yes |
| 973-544 | Lumen LEVEL 3 COMMUNICATIONS, LLC - NJ | 2001-07-18 | yes | yes |
| 973-564 | Verizon VERIZON NEW JERSEY, INC. | – | yes | yes |
| 973-671 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | – | yes | yes |
| 973-788 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 973-899 | Onvoy ONVOY, LLC - NJ | 2025-09-03 | yes | yes |
| 973-912 | Verizon VERIZON NEW JERSEY, INC. | – | no | yes |
| 973-921 | Verizon VERIZON NEW JERSEY, INC. | – | yes | yes |
| 973-924 | AT&T TELEPORT COMMUNICATIONS AMERICA, 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 | 8 | 47.1% |
| LEVEL 3 COMMUNICATIONS, LLC - NJ | Lumen | 2 | 11.8% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 2 | 11.8% |
| ONVOY, LLC - NJ | Onvoy | 2 | 11.8% |
| PAETEC ITEL, LLC | Windstream | 1 | 5.9% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | Verizon | 1 | 5.9% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - NJ | AT&T | 1 | 5.9% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to MILLBURN in area code 973?
17 blocks: 218, 232, 258, 314, 315, 346, 376, 379, 467, 544, 564, 671 and 5 more, all listed in the table above.
Which carriers have numbers in MILLBURN?
VERIZON NEW JERSEY, INC. (8 blocks), LEVEL 3 COMMUNICATIONS, LLC - NJ (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2 blocks), ONVOY, LLC - NJ (2 blocks), PAETEC ITEL, LLC (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES 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 MILLBURN 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.