CHELSEA prefixes in area code 617
NANPA records 12 assigned NXX blocks to rate center CHELSEA in area code 617, 1.6% of the 768 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. 6 holders hold those blocks, the largest being VERIZON NEW ENGLAND INC. (4), METROPCS, INC. (2), PAETEC ITEL, LLC (2). The earliest assignment on record here is 2001-02-14 and the most recent 2001-02-16. 8 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 205, 539, 641, 659 – 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 |
|---|---|---|---|---|
| 617-270 | T-Mobile METROPCS, INC. | 2001-02-14 | yes | yes |
| 617-336 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 617-370 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 617-409 | Windstream PAETEC ITEL, LLC | 2001-02-16 | yes | yes |
| 617-461 | T-Mobile METROPCS, INC. | – | yes | yes |
| 617-466 | Comcast COMCAST IP PHONE, LLC | – | yes | yes |
| 617-660 | Verizon VERIZON NEW ENGLAND INC. | – | no | yes |
| 617-819 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 617-884 | Verizon VERIZON NEW ENGLAND INC. | – | no | yes |
| 617-887 | Verizon VERIZON NEW ENGLAND INC. | – | no | yes |
| 617-889 | Verizon VERIZON NEW ENGLAND INC. | – | no | yes |
| 617-958 | Onvoy ONVOY, LLC - MA | – | 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 ENGLAND INC. | Verizon | 4 | 33.3% |
| METROPCS, INC. | T-Mobile | 2 | 16.7% |
| PAETEC ITEL, LLC | Windstream | 2 | 16.7% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 2 | 16.7% |
| COMCAST IP PHONE, LLC | Comcast | 1 | 8.3% |
| ONVOY, LLC - MA | Onvoy | 1 | 8.3% |
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 CHELSEA in area code 617?
12 blocks: 270, 336, 370, 409, 461, 466, 660, 819, 884, 887, 889, 958. The table above gives the holder of each.
Which carriers have numbers in CHELSEA?
VERIZON NEW ENGLAND INC. (4 blocks), METROPCS, INC. (2 blocks), PAETEC ITEL, LLC (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2 blocks), COMCAST IP PHONE, LLC (1 block), ONVOY, LLC - MA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is CHELSEA 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.