DE KALB prefixes in area code 779
NANPA records 15 assigned NXX blocks to rate center DE KALB in area code 779, 4.2% of the 354 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. 13 holders hold those blocks, the largest being NUSO, LLC (2), ONVOY, LLC (2), BOOST SUBSCRIBERCO L.L.C. (1). The earliest assignment on record here is 2008-10-22 and the most recent 2026-02-03. 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 601, 769, 815, 816 – 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 |
|---|---|---|---|---|
| 779-212 | NUSO, LLC | 2013-03-13 | yes | yes |
| 779-217 | Dish BOOST SUBSCRIBERCO L.L.C. | 2023-05-19 | yes | yes |
| 779-255 | Onvoy ONVOY, LLC | – | yes | yes |
| 779-270 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2020-02-19 | yes | yes |
| 779-276 | STRATUS NETWORKS | 2020-07-28 | yes | yes |
| 779-334 | Lumen LEVEL 3 COMMUNICATIONS, LLC - IL | 2020-11-04 | yes | yes |
| 779-365 | NUSO, LLC | 2023-02-15 | yes | yes |
| 779-400 | YMAX COMMUNICATIONS CORP. - IL | 2011-02-17 | yes | yes |
| 779-422 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 2025-04-22 | yes | yes |
| 779-431 | T-Mobile T-MOBILE USA, INC. | 2025-08-19 | yes | yes |
| 779-446 | AT&T AT&T ENTERPRISES, LLC | 2026-02-03 | yes | yes |
| 779-775 | SKYE TELECOM LLC DBA SKYETEL | 2021-09-13 | yes | yes |
| 779-777 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2008-10-22 | yes | yes |
| 779-902 | Charter ONVOY SPECTRUM, LLC | 2021-03-19 | yes | yes |
| 779-910 | Onvoy ONVOY, LLC | 2021-03-18 | 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 |
|---|---|---|---|
| NUSO, LLC | – | 2 | 13.3% |
| ONVOY, LLC | Onvoy | 2 | 13.3% |
| BOOST SUBSCRIBERCO L.L.C. | Dish | 1 | 6.7% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 6.7% |
| STRATUS NETWORKS | – | 1 | 6.7% |
| LEVEL 3 COMMUNICATIONS, LLC - IL | Lumen | 1 | 6.7% |
| YMAX COMMUNICATIONS CORP. - IL | – | 1 | 6.7% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | Verizon | 1 | 6.7% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 6.7% |
| AT&T ENTERPRISES, LLC | AT&T | 1 | 6.7% |
| SKYE TELECOM LLC DBA SKYETEL | – | 1 | 6.7% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 1 | 6.7% |
| ONVOY SPECTRUM, LLC | Charter | 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 DE KALB in area code 779?
15 blocks: 212, 217, 255, 270, 276, 334, 365, 400, 422, 431, 446, 775 and 3 more, all listed in the table above.
Which carriers have numbers in DE KALB?
NUSO, LLC (2 blocks), ONVOY, LLC (2 blocks), BOOST SUBSCRIBERCO L.L.C. (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), STRATUS NETWORKS (1 block), LEVEL 3 COMMUNICATIONS, LLC - IL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is DE KALB 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.