NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 779
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-06-03 | 779-336-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WOODSTOCK | IL |
| 2021-06-03 | 779-732-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LA SALLE | IL |
| 2021-06-03 | 779-977-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | HARVARD | IL |
| 2021-06-02 | 779-293-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NEW LENOX | IL |
| 2021-05-21 | 779-264-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | KANKAKEE | IL |
| 2021-05-21 | 779-265-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MCHENRY | IL |
| 2021-05-21 | 779-356-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CRYSTAL LK | IL |
| 2021-05-19 | 779-758-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | JOLIET | IL |
| 2020-10-02 | 779-323-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ROCKFORD | IL |
| 2020-09-17 | 779-297-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | STERLING | IL |
| 2020-09-17 | 779-298-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | FORREST | IL |
| 2016-07-11 | 779-252-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PLAINFIELD | IL |
| 2016-07-11 | 779-301-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | KANKAKEE | IL |
| 2016-07-11 | 779-302-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WOODSTOCK | IL |
| 2016-07-11 | 779-703-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | JOLIET | IL |
| 2013-08-07 | 779-234-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | PLAINFIELD | IL |
| 2013-07-29 | 779-206-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | JOLIET | IL |
| 2013-07-29 | 779-994-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CRYSTAL LK | IL |
| 2013-04-09 | 779-429-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WILMINGTON | IL |
| 2013-04-09 | 779-999-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | NEWARK | IL |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.