GREENSBORO prefixes in area code 743
NANPA records 22 assigned NXX blocks to rate center GREENSBORO in area code 743, 13.5% of the 163 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. 20 holders hold those blocks, the largest being HD CARRIER LLC (2), ONVOY, LLC - NC (2), CSC WIRELESS, LLC (1). The earliest assignment on record here is 2017-01-17 and the most recent 2026-10-20. 22 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 334, 336, 410, 448 – 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 |
|---|---|---|---|---|
| 743-209 | CSC WIRELESS, LLC | 2020-05-20 | yes | yes |
| 743-222 | TERRA NOVA TELECOM INC. | 2019-03-25 | yes | yes |
| 743-223 | NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC | 2017-01-17 | yes | yes |
| 743-229 | EXIANT COMMUNICATIONS LLC | 2019-11-05 | yes | yes |
| 743-230 | IP HORIZON LLC | 2021-09-15 | yes | yes |
| 743-235 | NUSO, LLC | 2020-08-27 | yes | yes |
| 743-242 | Dish BOOST SUBSCRIBERCO L.L.C. | 2021-12-15 | yes | yes |
| 743-249 | Windstream PAETEC ITEL, LLC | 2022-03-31 | yes | yes |
| 743-258 | Comcast COMCAST IP PHONE, LLC | 2023-02-22 | yes | yes |
| 743-281 | FIVE9, INC. | 2024-09-04 | yes | yes |
| 743-286 | HD CARRIER LLC | 2025-08-11 | yes | yes |
| 743-287 | LEAP TELECOM, LLC | 2025-11-20 | yes | yes |
| 743-289 | WAVENATION, LLC | 2025-12-11 | yes | yes |
| 743-299 | Onvoy ONVOY, LLC - NC | 2026-10-20 | yes | no |
| 743-413 | WIDE VOICE, LLC - NC | 2026-05-28 | yes | yes |
| 743-433 | SKYE TELECOM LLC DBA SKYETEL | 2021-10-21 | yes | yes |
| 743-643 | HD CARRIER LLC | 2020-06-05 | yes | yes |
| 743-666 | FRACTEL, LLC | 2019-01-24 | yes | yes |
| 743-867 | COMMIO, LLC | 2017-06-15 | yes | yes |
| 743-895 | Twilio TWILIO INTERNATIONAL, INC. | 2021-03-29 | yes | yes |
| 743-902 | Charter ONVOY SPECTRUM, LLC | 2021-04-15 | yes | yes |
| 743-910 | Onvoy ONVOY, LLC - NC | 2021-01-27 | 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 |
|---|---|---|---|
| HD CARRIER LLC | – | 2 | 9.1% |
| ONVOY, LLC - NC | Onvoy | 2 | 9.1% |
| CSC WIRELESS, LLC | – | 1 | 4.5% |
| TERRA NOVA TELECOM INC. | – | 1 | 4.5% |
| NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC | – | 1 | 4.5% |
| EXIANT COMMUNICATIONS LLC | – | 1 | 4.5% |
| IP HORIZON LLC | – | 1 | 4.5% |
| NUSO, LLC | – | 1 | 4.5% |
| BOOST SUBSCRIBERCO L.L.C. | Dish | 1 | 4.5% |
| PAETEC ITEL, LLC | Windstream | 1 | 4.5% |
| COMCAST IP PHONE, LLC | Comcast | 1 | 4.5% |
| FIVE9, INC. | – | 1 | 4.5% |
| LEAP TELECOM, LLC | – | 1 | 4.5% |
| WAVENATION, LLC | – | 1 | 4.5% |
| WIDE VOICE, LLC - NC | – | 1 | 4.5% |
| SKYE TELECOM LLC DBA SKYETEL | – | 1 | 4.5% |
| FRACTEL, LLC | – | 1 | 4.5% |
| COMMIO, LLC | – | 1 | 4.5% |
| TWILIO INTERNATIONAL, INC. | Twilio | 1 | 4.5% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 4.5% |
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 GREENSBORO in area code 743?
22 blocks: 209, 222, 223, 229, 230, 235, 242, 249, 258, 281, 286, 287 and 10 more, all listed in the table above.
Which carriers have numbers in GREENSBORO?
HD CARRIER LLC (2 blocks), ONVOY, LLC - NC (2 blocks), CSC WIRELESS, LLC (1 block), TERRA NOVA TELECOM INC. (1 block), NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC (1 block), EXIANT COMMUNICATIONS 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 GREENSBORO 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.