NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 606
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-05-24 | 606-445-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | FREEBURN | KY |
| 2024-05-24 | 606-486-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WHITESBURG | KY |
| 2024-05-24 | 606-489-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CORBIN | KY |
| 2024-04-01 | 606-323-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | INEZ | KY |
| 2024-04-01 | 606-332-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | JACKSON | KY |
| 2024-04-01 | 606-333-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | VIRGIE | KY |
| 2024-04-01 | 606-352-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BENHAMLNCH | KY |
| 2024-04-01 | 606-370-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CRAB ORCH | KY |
| 2024-04-01 | 606-384-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PAINTSVL | KY |
| 2024-04-01 | 606-390-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WARFIELD | KY |
| 2024-04-01 | 606-400-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | WILLIAMSBG | KY |
| 2024-04-01 | 606-444-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | PIKEVILLE | KY |
| 2024-04-01 | 606-455-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MAYSVILLE | KY |
| 2024-04-01 | 606-459-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | PRESTONSBG | KY |
| 2024-04-01 | 606-466-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NEON | KY |
| 2024-04-01 | 606-488-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MCCARR | KY |
| 2024-04-01 | 606-500-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WALLINSCRK | KY |
| 2024-04-01 | 606-510-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | STANFORD | KY |
| 2024-04-01 | 606-518-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | FEDSCREEK | KY |
| 2024-04-01 | 606-530-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MARTIN | KY |
| 2024-04-01 | 606-576-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MIDDLESBO | KY |
| 2024-04-01 | 606-586-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WAYLAND | KY |
| 2024-04-01 | 606-607-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | SOWILLIMSN | KY |
| 2024-04-01 | 606-714-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | HARLAN | KY |
| 2024-04-01 | 606-800-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | STONE | KY |
| 2024-04-01 | 606-989-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LOUISA | KY |
| 2024-03-11 | 606-322-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ALLEN | KY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.