NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

BRIGHTON prefixes in area code 857

NANPA records 13 assigned NXX blocks to rate center BRIGHTON in area code 857, 3.6% 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. 6 holders hold those blocks, the largest being OMNIPOINT MIAMI E LICENSE, LLC (5), ONVOY, LLC - MA (3), NEW CINGULAR WIRELESS PCS, LLC - DC (2). The earliest assignment on record here is 2001-03-27 and the most recent 2023-10-11. 13 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 319, 617, 618, 810 – overlay codes cover the same geography, so a rate center is served by all of them.

13 assigned blocks – 3.6% of 857
6 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
857-280 Onvoy ONVOY, LLC - MA 2016-02-26 yes yes
857-316 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2015-02-27 yes yes
857-384 Onvoy ONVOY, LLC - MA 2021-07-16 yes yes
857-414 HD CARRIER LLC – yes yes
857-425 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2016-09-06 yes yes
857-498 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2001-08-24 yes yes
857-540 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
857-559 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2001-03-27 yes yes
857-605 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2023-10-11 yes yes
857-832 TON80 COMMUNICATIONS, LLC 2022-02-11 yes yes
857-877 Onvoy ONVOY, LLC - MA 2020-05-13 yes yes
857-919 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2001-04-02 yes yes
857-961 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2023-01-09 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

HolderBrandBlocksShare here
OMNIPOINT MIAMI E LICENSE, LLC T-Mobile 5 38.5%
ONVOY, LLC - MA Onvoy 3 23.1%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 2 15.4%
HD CARRIER LLC – 1 7.7%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 7.7%
TON80 COMMUNICATIONS, LLC – 1 7.7%

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 BRIGHTON in area code 857?

13 blocks: 280, 316, 384, 414, 425, 498, 540, 559, 605, 832, 877, 919 and 1 more, all listed in the table above.

Which carriers have numbers in BRIGHTON?

OMNIPOINT MIAMI E LICENSE, LLC (5 blocks), ONVOY, LLC - MA (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - DC (2 blocks), HD CARRIER LLC (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), TON80 COMMUNICATIONS, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BRIGHTON 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.

Other rate centers in 857

All 361 prefixes in 857