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

TROY prefixes in area code 636

NANPA records 11 assigned NXX blocks to rate center TROY in area code 636, 2.5% of the 435 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 T-MOBILE USA, INC. (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO (2), BRIGHTSPEED OF MISSOURI, LLC (2). The earliest assignment on record here is 2002-08-09 and the most recent 2024-02-16. 10 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 208, 248, 254, 272 – overlay codes cover the same geography, so a rate center is served by all of them.

11 assigned blocks – 2.5% of 636
7 holders of record
10 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
636-290 T-Mobile T-MOBILE USA, INC. 2002-08-09 yes yes
636-295 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO – yes yes
636-318 T-Mobile T-MOBILE USA, INC. – yes yes
636-358 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
636-367 T-Mobile T-MOBILE USA, INC. 2023-03-08 yes yes
636-380 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 2024-02-16 yes yes
636-383 T-Mobile METROPCS, INC. 2014-07-03 yes yes
636-462 Brightspeed BRIGHTSPEED OF MISSOURI, LLC – yes yes
636-528 Brightspeed BRIGHTSPEED OF MISSOURI, LLC – no yes
636-622 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO – yes yes
636-775 Charter CHARTER IP ENABLED SERVICES, LLC 2011-02-07 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 3 27.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO Verizon 2 18.2%
BRIGHTSPEED OF MISSOURI, LLC Brightspeed 2 18.2%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 9.1%
METROPCS, INC. T-Mobile 1 9.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO Verizon 1 9.1%
CHARTER IP ENABLED SERVICES, LLC Charter 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 TROY in area code 636?

11 blocks: 290, 295, 318, 358, 367, 380, 383, 462, 528, 622, 775. The table above gives the holder of each.

Which carriers have numbers in TROY?

T-MOBILE USA, INC. (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO (2 blocks), BRIGHTSPEED OF MISSOURI, LLC (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), METROPCS, INC. (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is TROY 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 636

All 435 prefixes in 636