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

CYPRESS prefixes in area code 346

NANPA records 33 assigned NXX blocks to rate center CYPRESS in area code 346, 4.4% of the 752 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. 8 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (8), NEW CINGULAR WIRELESS PCS, LLC - IL (7), AERIAL COMMUNICATIONS, INC. (6). The earliest assignment on record here is 2015-03-02 and the most recent 2026-08-21. 33 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 281, 618, 657, 713 – overlay codes cover the same geography, so a rate center is served by all of them.

33 assigned blocks – 4.4% of 346
8 holders of record
33 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
346-218 T-Mobile AERIAL COMMUNICATIONS, INC. 2015-03-02 yes yes
346-254 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2017-03-10 yes yes
346-280 T-Mobile AERIAL COMMUNICATIONS, INC. 2017-10-25 yes yes
346-332 Onvoy ONVOY, LLC - TX 2018-02-22 yes yes
346-337 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2018-04-19 yes yes
346-379 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2019-01-23 yes yes
346-412 Charter CHARTER IP ENABLED SERVICES, LLC 2016-06-10 yes yes
346-445 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2020-10-14 yes yes
346-452 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2020-12-28 yes yes
346-462 T-Mobile AERIAL COMMUNICATIONS, INC. 2021-04-29 yes yes
346-513 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2021-10-11 yes yes
346-539 Dish BOOST SUBSCRIBERCO L.L.C. 2022-01-06 yes yes
346-544 T-Mobile AERIAL COMMUNICATIONS, INC. 2022-01-18 yes yes
346-550 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2022-02-07 yes yes
346-573 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2022-07-13 yes yes
346-580 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2022-08-17 yes yes
346-587 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2022-09-07 yes yes
346-588 FRACTEL, LLC 2021-05-10 yes yes
346-634 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2023-01-18 yes yes
346-652 T-Mobile AERIAL COMMUNICATIONS, INC. 2023-05-08 yes yes
346-657 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2023-05-11 yes yes
346-666 Onvoy ONVOY, LLC - TX 2015-04-16 yes yes
346-730 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2023-10-04 yes yes
346-732 FRACTEL, LLC 2019-05-21 yes yes
346-745 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2023-12-11 yes yes
346-796 Onvoy ONVOY, LLC - TX 2024-04-18 yes yes
346-818 T-Mobile AERIAL COMMUNICATIONS, INC. 2015-12-10 yes yes
346-848 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2024-11-22 yes yes
346-850 Onvoy ONVOY, LLC - TX 2025-01-09 yes yes
346-914 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-12-18 yes yes
346-928 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2026-05-18 yes yes
346-942 Onvoy ONVOY, LLC - TX 2026-08-21 yes no
346-946 FRACTEL, LLC 2020-07-02 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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 8 24.2%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 7 21.2%
AERIAL COMMUNICATIONS, INC. T-Mobile 6 18.2%
ONVOY, LLC - TX Onvoy 5 15.2%
FRACTEL, LLC – 3 9.1%
BANDWIDTH.COM CLEC, LLC - TX Bandwidth 2 6.1%
CHARTER IP ENABLED SERVICES, LLC Charter 1 3%
BOOST SUBSCRIBERCO L.L.C. Dish 1 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 CYPRESS in area code 346?

33 blocks: 218, 254, 280, 332, 337, 379, 412, 445, 452, 462, 513, 539 and 21 more, all listed in the table above.

Which carriers have numbers in CYPRESS?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (8 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (7 blocks), AERIAL COMMUNICATIONS, INC. (6 blocks), ONVOY, LLC - TX (5 blocks), FRACTEL, LLC (3 blocks), BANDWIDTH.COM CLEC, LLC - TX (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CYPRESS 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 346

All 752 prefixes in 346