COLUMBIA prefixes in area code 223
NANPA records 12 assigned NXX blocks to rate center COLUMBIA in area code 223, 4.8% of the 252 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. 5 holders hold those blocks, the largest being D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE (8), ONVOY, LLC - PA (1), BANDWIDTH.COM CLEC, LLC - PA (1). The earliest assignment on record here is 2018-08-15 and the most recent 2025-11-04. 12 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 207, 235, 252, 270 – 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 |
|---|---|---|---|---|
| 223-207 | Onvoy ONVOY, LLC - PA | 2018-08-15 | yes | yes |
| 223-246 | T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 2021-01-11 | yes | yes |
| 223-278 | T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 2021-06-11 | yes | yes |
| 223-281 | Bandwidth BANDWIDTH.COM CLEC, LLC - PA | 2022-03-28 | yes | yes |
| 223-289 | T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 2022-02-16 | yes | yes |
| 223-340 | T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 2023-10-18 | yes | yes |
| 223-361 | T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 2024-05-08 | yes | yes |
| 223-375 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 2025-05-09 | yes | yes |
| 223-378 | T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 2025-05-14 | yes | yes |
| 223-381 | T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 2025-11-04 | yes | yes |
| 223-385 | T-Mobile D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | – | yes | no |
| 223-667 | FRACTEL, LLC | 2021-10-25 | 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 |
|---|---|---|---|
| D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | T-Mobile | 8 | 66.7% |
| ONVOY, LLC - PA | Onvoy | 1 | 8.3% |
| BANDWIDTH.COM CLEC, LLC - PA | Bandwidth | 1 | 8.3% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | Verizon | 1 | 8.3% |
| FRACTEL, LLC | – | 1 | 8.3% |
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 COLUMBIA in area code 223?
12 blocks: 207, 246, 278, 281, 289, 340, 361, 375, 378, 381, 385, 667. The table above gives the holder of each.
Which carriers have numbers in COLUMBIA?
D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE (8 blocks), ONVOY, LLC - PA (1 block), BANDWIDTH.COM CLEC, LLC - PA (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA (1 block), FRACTEL, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is COLUMBIA 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.