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 859
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-05-24 | 859-464-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WACO | KY |
| 2024-04-01 | 859-210-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | SPRINGFLD | KY |
| 2024-04-01 | 859-220-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | JUNCTIONCY | KY |
| 2024-04-01 | 859-265-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | HARRODSBG | KY |
| 2024-04-01 | 859-306-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WINCHESTER | KY |
| 2024-04-01 | 859-318-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | SALVISA | KY |
| 2024-04-01 | 859-324-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | DANVILLE | KY |
| 2024-04-01 | 859-343-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NOMIDDLETN | KY |
| 2024-04-01 | 859-370-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BURGIN | KY |
| 2024-04-01 | 859-378-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LITTLEROCK | KY |
| 2024-04-01 | 859-416-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MACKVILLE | KY |
| 2024-04-01 | 859-417-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MTSTERLING | KY |
| 2024-04-01 | 859-423-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MOORESVL | KY |
| 2024-04-01 | 859-450-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CYNTHIANA | KY |
| 2024-04-01 | 859-459-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WILLISBURG | KY |
| 2024-04-01 | 859-465-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MILLERBURG | KY |
| 2024-04-01 | 859-527-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | FORD | KY |
| 2024-04-01 | 859-599-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CORNISHVL | KY |
| 2024-04-01 | 859-651-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CARLISLE | KY |
| 2024-04-01 | 859-765-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PARIS | KY |
| 2024-04-01 | 859-766-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | PERRYVILLE | KY |
| 2024-04-01 | 859-946-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | KIRKSVILLE | KY |
| 2021-01-28 | 859-452-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | RICHMOND | 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.