BROOKLINE prefixes in area code 857
NANPA records 26 assigned NXX blocks to rate center BROOKLINE in area code 857, 7.2% of the 361 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 OMNIPOINT MIAMI E LICENSE, LLC (14), VERIZON NEW ENGLAND INC. (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA (3). The earliest assignment on record here is 2001-03-20 and the most recent 2024-11-01. 26 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 617 – 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 |
|---|---|---|---|---|
| 857-215 | Verizon VERIZON NEW ENGLAND INC. | 2010-02-23 | yes | yes |
| 857-218 | Verizon VERIZON NEW ENGLAND INC. | 2007-01-12 | yes | yes |
| 857-225 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 2001-05-03 | yes | yes |
| 857-234 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2002-03-18 | yes | yes |
| 857-245 | YMAX COMMUNICATIONS CORP. - MA | 2006-11-02 | yes | yes |
| 857-307 | Verizon VERIZON NEW ENGLAND INC. | 2006-02-10 | yes | yes |
| 857-337 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 2015-10-07 | yes | yes |
| 857-340 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2020-09-29 | yes | yes |
| 857-352 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2015-01-22 | yes | yes |
| 857-361 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | – | yes | yes |
| 857-364 | Windstream PAETEC ITEL, LLC | 2001-03-20 | yes | yes |
| 857-370 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2021-03-26 | yes | yes |
| 857-376 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2021-06-29 | yes | yes |
| 857-381 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2021-09-09 | yes | yes |
| 857-390 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2021-10-07 | yes | yes |
| 857-396 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2022-07-28 | yes | yes |
| 857-405 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2022-11-08 | yes | yes |
| 857-421 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2024-07-01 | yes | yes |
| 857-423 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2019-09-12 | yes | yes |
| 857-426 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2024-11-01 | yes | yes |
| 857-565 | T-Mobile OMNIPOINT MIAMI E LICENSE, LLC | 2023-11-09 | yes | yes |
| 857-576 | Bandwidth BANDWIDTH.COM CLEC, LLC - MA | – | yes | yes |
| 857-666 | Onvoy ONVOY, LLC - MA | 2015-03-23 | yes | yes |
| 857-707 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 2014-10-10 | yes | yes |
| 857-746 | TON80 COMMUNICATIONS, LLC | 2022-02-09 | yes | yes |
| 857-867 | Charter ONVOY SPECTRUM, LLC | 2021-03-17 | 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 |
|---|---|---|---|
| OMNIPOINT MIAMI E LICENSE, LLC | T-Mobile | 14 | 53.8% |
| VERIZON NEW ENGLAND INC. | Verizon | 3 | 11.5% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | Verizon | 3 | 11.5% |
| YMAX COMMUNICATIONS CORP. - MA | – | 1 | 3.8% |
| PAETEC ITEL, LLC | Windstream | 1 | 3.8% |
| BANDWIDTH.COM CLEC, LLC - MA | Bandwidth | 1 | 3.8% |
| ONVOY, LLC - MA | Onvoy | 1 | 3.8% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 3.8% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 3.8% |
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 BROOKLINE in area code 857?
26 blocks: 215, 218, 225, 234, 245, 307, 337, 340, 352, 361, 364, 370 and 14 more, all listed in the table above.
Which carriers have numbers in BROOKLINE?
OMNIPOINT MIAMI E LICENSE, LLC (14 blocks), VERIZON NEW ENGLAND INC. (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA (3 blocks), YMAX COMMUNICATIONS CORP. - MA (1 block), PAETEC ITEL, LLC (1 block), BANDWIDTH.COM CLEC, 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 BROOKLINE 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.