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 720
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-06-18 | 720-816-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | ALLNSPKLYN | CO |
| 2024-06-18 | 720-952-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | DECKERS | CO |
| 2024-06-17 | 720-918-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | KEENESBURG | CO |
| 2022-03-30 | 720-698-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | LONGMONT | CO |
| 2022-03-30 | 720-824-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | HUDSON | CO |
| 2022-03-29 | 720-856-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | FORTLUPTON | CO |
| 2022-03-29 | 720-861-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | GEORGETOWN | CO |
| 2021-03-08 | 720-813-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | DENVER | CO |
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.