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 440
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-02-12 | 440-254-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LEROY | OH |
| 2024-02-12 | 440-332-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BURTON | OH |
| 2024-02-12 | 440-368-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | MENTOR | OH |
| 2024-02-12 | 440-372-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | NOROYALTON | OH |
| 2024-02-12 | 440-373-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | WICKLIFFE | OH |
| 2024-02-12 | 440-377-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | OLMSTEDFLS | OH |
| 2024-02-12 | 440-389-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GATESMILLS | OH |
| 2024-02-12 | 440-397-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | BRECKSVL | OH |
| 2024-02-12 | 440-399-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | BEDFORD | OH |
| 2024-02-12 | 440-531-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BEREA | OH |
| 2024-02-12 | 440-601-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CHAGRINFLS | OH |
| 2024-02-12 | 440-638-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | STRONGSVL | OH |
| 2024-02-12 | 440-753-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | HILLCREST | OH |
| 2024-02-08 | 440-393-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | KIRTLAND | OH |
| 2024-02-08 | 440-861-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CHESTERLD | OH |
| 2013-08-20 | 440-434-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LORAIN | OH |
| 2013-08-20 | 440-491-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | GENEVA | OH |
| 2013-08-12 | 440-214-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CHARDON | OH |
| 2013-08-12 | 440-261-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | ASHTABULA | OH |
| 2013-08-12 | 440-316-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | NORTHEATON | OH |
| 2013-08-12 | 440-336-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WILLOUGHBY | OH |
| 2013-08-12 | 440-340-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | VICTORY | OH |
| 2013-08-12 | 440-406-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ELYRIA | OH |
| 2013-08-12 | 440-455-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | TRINITY | OH |
| 2013-08-12 | 440-637-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | PAINESVL | OH |
| 2013-08-12 | 440-707-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | OBERLIN | OH |
| 2013-08-12 | 440-965-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BIRMINGHAM | OH |
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.