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

BREMERTON prefixes in area code 564

NANPA records 17 assigned NXX blocks to rate center BREMERTON in area code 564, 17.5% of the 97 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. 4 holders hold those blocks, the largest being T-MOBILE USA, INC. (7), TELEPORT COMMUNICATIONS AMERICA, LLC - WA (7), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2). The earliest assignment on record here is 2020-10-22 and the most recent 2024-01-09. 17 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 360 – overlay codes cover the same geography, so a rate center is served by all of them.

17 assigned blocks – 17.5% of 564
4 holders of record
17 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
564-202 T-Mobile T-MOBILE USA, INC. 2020-10-27 yes yes
564-205 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2021-08-10 yes yes
564-206 T-Mobile T-MOBILE USA, INC. 2023-08-11 yes yes
564-210 T-Mobile T-MOBILE USA, INC. 2021-05-04 yes yes
564-218 T-Mobile T-MOBILE USA, INC. 2022-05-02 yes yes
564-226 T-Mobile T-MOBILE USA, INC. 2022-11-15 yes yes
564-229 T-Mobile T-MOBILE USA, INC. 2022-01-27 yes yes
564-230 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2023-03-01 yes yes
564-232 T-Mobile T-MOBILE USA, INC. 2021-10-13 yes yes
564-251 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA 2024-01-05 yes yes
564-252 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA 2024-01-09 yes yes
564-253 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA 2024-01-09 yes yes
564-254 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA 2024-01-09 yes yes
564-255 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA 2024-01-09 yes yes
564-256 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA 2024-01-09 yes yes
564-257 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA 2024-01-09 yes yes
564-654 Onvoy ONVOY, LLC - WA 2020-10-22 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
T-MOBILE USA, INC. T-Mobile 7 41.2%
TELEPORT COMMUNICATIONS AMERICA, LLC - WA AT&T 7 41.2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 2 11.8%
ONVOY, LLC - WA Onvoy 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 BREMERTON in area code 564?

17 blocks: 202, 205, 206, 210, 218, 226, 229, 230, 232, 251, 252, 253 and 5 more, all listed in the table above.

Which carriers have numbers in BREMERTON?

T-MOBILE USA, INC. (7 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - WA (7 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2 blocks), ONVOY, LLC - WA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BREMERTON 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 564

All 97 prefixes in 564