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

BIRCH TREE prefixes in area code 235

NANPA records 10 assigned NXX blocks to rate center BIRCH TREE in area code 235, 24.4% of the 41 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. 2 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (9), ONVOY, LLC - MO (1). The earliest assignment on record here is 2024-12-09 and the most recent 2026-08-13. 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 code 573 – overlay codes cover the same geography, so a rate center is served by all of them.

10 assigned blocks – 24.4% of 235
2 holders of record
10 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
235-201 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2024-12-09 yes yes
235-205 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-02-18 yes yes
235-212 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-04-14 yes yes
235-213 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2026-02-20 yes yes
235-214 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-05-16 yes yes
235-215 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-06-20 yes yes
235-220 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2026-02-20 yes yes
235-222 Onvoy ONVOY, LLC - MO 2025-07-15 yes yes
235-228 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2026-08-13 yes no
235-230 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2026-08-13 yes no

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
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 9 90%
ONVOY, LLC - MO Onvoy 1 10%

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 BIRCH TREE in area code 235?

10 blocks: 201, 205, 212, 213, 214, 215, 220, 222, 228, 230. The table above gives the holder of each.

Which carriers have numbers in BIRCH TREE?

NEW CINGULAR WIRELESS PCS, LLC - IL (9 blocks), ONVOY, 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 BIRCH TREE 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 235

All 41 prefixes in 235