CENTRALIA prefixes in area code 730
NANPA records 15 assigned NXX blocks to rate center CENTRALIA in area code 730, 11.5% of the 130 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 (14), METROPCS, INC. (1). The earliest assignment on record here is 2023-09-14 and the most recent 2026-06-15. 15 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 360, 564, 573, 618 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 730-220 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2023-09-14 | yes | yes |
| 730-227 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2023-10-13 | yes | yes |
| 730-232 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2024-01-10 | yes | yes |
| 730-234 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2024-02-05 | yes | yes |
| 730-253 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2024-07-11 | yes | yes |
| 730-258 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2024-11-12 | yes | yes |
| 730-262 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-01-14 | yes | yes |
| 730-266 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-03-07 | yes | yes |
| 730-272 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-05-19 | yes | no |
| 730-278 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-07-31 | yes | yes |
| 730-283 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-10-07 | yes | yes |
| 730-285 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-10-30 | yes | yes |
| 730-286 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-11-25 | yes | yes |
| 730-287 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-11-25 | yes | yes |
| 730-308 | T-Mobile METROPCS, INC. | 2026-06-15 | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 14 | 93.3% |
| METROPCS, INC. | T-Mobile | 1 | 6.7% |
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 CENTRALIA in area code 730?
15 blocks: 220, 227, 232, 234, 253, 258, 262, 266, 272, 278, 283, 285 and 3 more, all listed in the table above.
Which carriers have numbers in CENTRALIA?
NEW CINGULAR WIRELESS PCS, LLC - IL (14 blocks), METROPCS, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is CENTRALIA 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.