All assignees
364 prefixes in 779 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 779-400 | DE KALB | 259E | 2011-02-17 | Yes |
| 779-401 | KANKAKEE | 6534 | 2024-04-11 | Yes |
| 779-402 | MOMENCE | 6534 | 2024-04-30 | Yes |
| 779-403 | MCHENRY | 6529 | 2024-06-25 | Yes |
| 779-404 | ROCHELLE | 224C | 2024-07-08 | Yes |
| 779-405 | ROCKFORD | 616J | 2024-09-19 | Yes |
| 779-406 | MOMENCE | 6534 | 2024-10-21 | Yes |
| 779-407 | MOMENCE | 6534 | 2025-01-14 | Yes |
| 779-408 | JOLIET | 6333 | 2025-01-21 | Yes |
| 779-409 | ELIZABETH | 5562 | 2025-02-28 | Yes |
| 779-410 | STOCKTON | 506J | 2021-03-30 | Yes |
| 779-411 | XXXXXXXXXX | MULT | — | — |
| 779-412 | MOMENCE | 6534 | 2025-03-07 | Yes |
| 779-413 | FREEPORT | 6265 | 2025-03-21 | Yes |
| 779-414 | FREEPORT | 6265 | 2025-03-21 | Yes |
| 779-415 | FREEPORT | 6265 | 2025-03-21 | Yes |
| 779-416 | FREEPORT | 6265 | 2025-03-21 | Yes |
| 779-417 | FREEPORT | 6265 | 2025-03-21 | Yes |
| 779-418 | FREEPORT | 6265 | 2025-03-21 | Yes |
| 779-419 | FREEPORT | 6265 | 2025-03-21 | Yes |
| 779-420 | FREEPORT | 6265 | 2025-03-21 | Yes |
| 779-421 | FREEPORT | 6265 | 2025-03-21 | Yes |
| 779-422 | DE KALB | 6333 | 2025-04-22 | Yes |
| 779-423 | ROCKFORD | 318J | 2007-08-08 | Yes |
| 779-424 | ROCKFORD | 984E | 2025-06-10 | Yes |
| 779-425 | FORREST | 516C | 2025-07-08 | Yes |
| 779-426 | MANHATTAN | 516J | 2022-01-13 | Yes |
| 779-427 | MOMENCE | 6534 | 2025-07-10 | Yes |
| 779-428 | ROCKFORD | 700J | 2025-07-21 | Yes |
| 779-429 | WILMINGTON | 516C | 2008-11-13 | Yes |
| 779-430 | STERLING | 700J | 2025-07-21 | Yes |
| 779-431 | DE KALB | 6529 | 2025-08-19 | Yes |
| 779-432 | SHEFFIELD | 4837 | 2007-03-27 | — |
| 779-433 | DIXON | 984E | 2025-09-08 | Yes |
| 779-434 | JOLIET | 6534 | 2025-11-14 | Yes |
| 779-435 | JOLIET | 9329 | 2006-11-13 | Yes |
| 779-436 | PLAINFIELD | 6529 | 2025-11-25 | Yes |
| 779-437 | MOMENCE | 6534 | 2025-11-25 | Yes |
| 779-438 | MOMENCE | 6534 | 2025-11-25 | Yes |
| 779-439 | WOODSTOCK | 6333 | 2026-01-07 | Yes |
| 779-440 | MOMENCE | 6534 | 2026-01-23 | Yes |
| 779-441 | MOMENCE | 6534 | 2026-01-23 | Yes |
| 779-442 | MOMENCE | 6534 | 2026-01-23 | Yes |
| 779-443 | GRANDDTOUR | 318J | 2026-01-28 | Yes |
| 779-444 | WONDERLAKE | 984E | 2010-08-17 | Yes |
| 779-445 | LOCKPORT | 5562 | 2022-11-08 | Yes |
| 779-446 | DE KALB | 516C | 2026-02-03 | Yes |
| 779-447 | FRANKFORT | 6534 | 2026-02-20 | Yes |
| 779-448 | MT CARROLL | 6534 | 2026-05-11 | Yes |
| 779-452 | FORREST | 883K | 2026-03-27 | Yes |
| 779-456 | JOLIET | 6529 | 2008-01-09 | Yes |
| 779-463 | MORRIS | 516J | 2022-03-23 | Yes |
| 779-465 | BRAIDWOOD | 965H | 2019-10-10 | Yes |
| 779-466 | EMINGTON | 516J | 2022-01-26 | Yes |
| 779-475 | SO BELOIT | 792K | 2007-03-27 | Yes |
| 779-479 | GRAYMONT | 224C | 2021-04-18 | Yes |
| 779-499 | FREEPORT | 622J | 2021-09-13 | Yes |
| 779-500 | ROCKFORD | 7136 | 2011-03-16 | Yes |
| 779-511 | XXXXXXXXXX | MULT | — | — |
| 779-513 | ROCKFORD | 508J | 2015-10-16 | Yes |
| 779-529 | MANTENO | 984E | 2010-08-17 | Yes |
| 779-537 | ROCKFORD | 6333 | 2007-03-27 | Yes |
| 779-545 | MT MORRIS | 318J | 2007-08-08 | Yes |
| 779-548 | MARENGO | 984E | 2010-08-16 | Yes |
| 779-552 | BELVIDERE | 972C | 2007-06-04 | Yes |
| 779-555 | DIR ASST | MULT | — | — |
| 779-577 | ROCKFORD | 622J | 2021-09-13 | Yes |
| 779-579 | KEMPTON | 224C | 2021-04-18 | Yes |
| 779-587 | STERLING | 883K | 2026-03-25 | Yes |
| 779-599 | PAW PAW | 965H | 2020-07-14 | Yes |
| 779-600 | CISSNAPARK | 965H | 2019-08-08 | Yes |
| 779-601 | LA SALLE | 984E | 2014-09-10 | Yes |
| 779-611 | XXXXXXXXXX | MULT | — | — |
| 779-624 | MOMENCE | 516J | 2022-01-13 | Yes |
| 779-625 | WOODSTOCK | 516J | 2022-02-23 | Yes |
| 779-639 | MCHENRY | 516J | 2022-01-13 | Yes |
| 779-666 | ROCKFORD | 224C | 2017-10-03 | Yes |
| 779-675 | OHIO | 516J | 2022-01-13 | Yes |
| 779-677 | FREEPORT | 965H | 2020-07-27 | Yes |
| 779-678 | ROCKFORD | 965H | 2021-01-12 | Yes |
| 779-679 | MAGNOLIA | 224C | 2021-04-18 | Yes |
| 779-696 | ROCKFORD | 829J | 2010-08-18 | Yes |
| 779-699 | SO BELOIT | 965H | 2020-07-17 | Yes |
| 779-700 | — | — | ||
| 779-701 | KANKAKEE | 984E | 2015-01-28 | Yes |
| 779-702 | JOLIET | 6529 | 2014-06-11 | Yes |
| 779-703 | JOLIET | 6529 | 2013-10-07 | Yes |
| 779-704 | MCHENRY | 7196 | 2013-10-31 | Yes |
| 779-706 | SANDWICH | 6333 | 2015-02-24 | Yes |
| 779-707 | JOLIET | 984E | 2015-04-21 | Yes |
| 779-710 | ROCKFORD | 224C | 2021-03-18 | Yes |
| 779-711 | XXXXXXXXXX | MULT | — | — |
| 779-713 | WOODSTOCK | 6529 | 2015-05-22 | Yes |
| 779-717 | SPRING VLY | 063E | 2015-10-15 | Yes |
| 779-722 | ASHTON | 965H | 2020-09-18 | Yes |
| 779-729 | LENA | 224C | 2021-04-13 | Yes |
| 779-732 | LA SALLE | 965H | 2021-02-10 | Yes |
| 779-739 | FORREST | 506J | 2022-02-14 | Yes |
| 779-746 | CISSNAPARK | 516J | 2022-01-13 | Yes |
| 779-749 | STEWARD | 224C | 2021-04-13 | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.