MILFORD prefixes in area code 603
NANPA records 11 assigned NXX blocks to rate center MILFORD in area code 603, 1.5% of the 752 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 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (3), BELL ATLANTIC MOBILE, INC (3), COMCAST IP PHONE, LLC (1). The earliest assignment on record here is 2001-03-16 and the most recent 2022-04-21. 9 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 codes 203, 272, 302, 402 – 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 |
|---|---|---|---|---|
| 603-213 | Comcast COMCAST IP PHONE, LLC | 2012-11-08 | yes | yes |
| 603-249 | Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | – | yes | yes |
| 603-316 | BELL ATLANTIC MOBILE, INC | 2017-10-16 | yes | yes |
| 603-554 | UNITED STATES CELLULAR - NH | – | yes | yes |
| 603-633 | BELL ATLANTIC MOBILE, INC | 2022-04-21 | yes | yes |
| 603-672 | Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | – | no | yes |
| 603-673 | Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | – | no | yes |
| 603-721 | T-Mobile METROPCS, INC. | 2002-07-08 | yes | yes |
| 603-732 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH | – | yes | yes |
| 603-769 | Lumen LEVEL 3 COMMUNICATIONS, LLC - NH | – | yes | yes |
| 603-801 | BELL ATLANTIC MOBILE, INC | 2001-03-16 | 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 |
|---|---|---|---|
| CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | Consolidated | 3 | 27.3% |
| BELL ATLANTIC MOBILE, INC | – | 3 | 27.3% |
| COMCAST IP PHONE, LLC | Comcast | 1 | 9.1% |
| UNITED STATES CELLULAR - NH | – | 1 | 9.1% |
| METROPCS, INC. | T-Mobile | 1 | 9.1% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH | Verizon | 1 | 9.1% |
| LEVEL 3 COMMUNICATIONS, LLC - NH | Lumen | 1 | 9.1% |
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 MILFORD in area code 603?
11 blocks: 213, 249, 316, 554, 633, 672, 673, 721, 732, 769, 801. The table above gives the holder of each.
Which carriers have numbers in MILFORD?
CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (3 blocks), BELL ATLANTIC MOBILE, INC (3 blocks), COMCAST IP PHONE, LLC (1 block), UNITED STATES CELLULAR - NH (1 block), METROPCS, INC. (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is MILFORD 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.