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 326
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-02-10 | 326-444-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ENON | OH |
| 2024-02-10 | 326-666-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | TREMONT CY | OH |
| 2024-02-06 | 326-216-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | SPRINGFLD | OH |
| 2024-02-06 | 326-234-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BYHALIA | OH |
| 2024-02-06 | 326-266-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | RAINSBORO | OH |
| 2024-02-06 | 326-345-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | DE GRAFF | OH |
| 2024-02-06 | 326-465-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | RIDGEWAY | OH |
| 2024-02-06 | 326-600-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MARSHALL | OH |
| 2024-02-06 | 326-626-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MEDWAY | OH |
| 2024-02-06 | 326-667-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FT LORAMIE | OH |
| 2024-02-06 | 326-758-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | JAMESTOWN | OH |
| 2024-02-06 | 326-799-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | W LIBERTY | OH |
| 2024-02-06 | 326-900-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | YLSPGCLFTN | OH |
| 2024-02-06 | 326-946-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PITCHIN | OH |
| 2024-01-30 | 326-215-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BEAVERCREK | OH |
| 2024-01-30 | 326-222-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ABERDEEN | OH |
| 2024-01-30 | 326-356-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BELFAST | OH |
| 2024-01-30 | 326-529-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CENTERVLLE | OH |
| 2024-01-30 | 326-786-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | DONNELSVL | 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.