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 220
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-04-05 | 220-230-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | THORNVILLE | OH |
| 2024-04-05 | 220-230-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | THORNVILLE | OH |
| 2024-04-05 | 220-245-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WALNUT | OH |
| 2024-04-05 | 220-245-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WALNUT | OH |
| 2024-04-05 | 220-251-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | JEFFERSNVL | OH |
| 2024-04-05 | 220-251-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | JEFFERSNVL | OH |
| 2024-04-05 | 220-263-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LONDON | OH |
| 2024-04-05 | 220-263-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LONDON | OH |
| 2024-04-05 | 220-399-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NELSONVL | OH |
| 2024-04-05 | 220-399-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | NELSONVL | OH |
| 2024-04-05 | 220-432-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FULTONHAM | OH |
| 2024-04-05 | 220-432-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | FULTONHAM | OH |
| 2024-04-05 | 220-444-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MINGO JCT | OH |
| 2024-04-05 | 220-444-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MINGO JCT | OH |
| 2024-04-05 | 220-678-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SOMERSET | OH |
| 2024-04-05 | 220-678-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SOMERSET | OH |
| 2024-04-05 | 220-788-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NEWHOLLAND | OH |
| 2024-04-05 | 220-788-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | NEWHOLLAND | OH |
| 2024-04-05 | 220-888-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | RUSHVILLE | OH |
| 2024-04-05 | 220-888-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | RUSHVILLE | OH |
| 2024-04-05 | 220-899-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | GRAYSVILLE | OH |
| 2024-04-05 | 220-899-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | GRAYSVILLE | OH |
| 2024-04-03 | 220-999-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NEWPORT | OH |
| 2024-04-03 | 220-999-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | NEWPORT | OH |
| 2024-02-12 | 220-222-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | ROSEVILLE | OH |
| 2024-02-12 | 220-800-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | WLAFAYETTE | OH |
| 2024-02-08 | 220-214-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | DANVL | OH |
| 2024-02-08 | 220-259-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | FREDERCKTN | OH |
| 2024-02-08 | 220-261-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SUGARGROVE | OH |
| 2021-12-14 | 220-999-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | NEWPORT | OH |
| 2016-09-12 | 220-201-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | ZANESVILLE | OH |
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.