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 276
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-12-06 | 276-339-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LEBANON | VA |
| 2024-12-06 | 276-339-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | LEBANON | VA |
| 2024-10-24 | 276-324-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | POUND | VA |
| 2024-10-24 | 276-324-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | POUND | VA |
| 2024-10-24 | 276-327-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | NORTON | VA |
| 2024-10-24 | 276-327-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | NORTON | VA |
| 2024-10-21 | 276-338-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | COEBURN | VA |
| 2024-10-21 | 276-338-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | COEBURN | VA |
| 2024-10-18 | 276-305-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | BIGSTONEGP | VA |
| 2024-05-31 | 276-324-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | POUND | VA |
| 2024-05-31 | 276-324-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | POUND | VA |
| 2024-05-31 | 276-327-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | NORTON | VA |
| 2024-05-31 | 276-327-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | NORTON | VA |
| 2024-04-23 | 276-972-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | COEBURN | VA |
| 2024-04-23 | 276-972-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | COEBURN | VA |
| 2024-01-12 | 276-255-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | WISE | VA |
| 2024-01-12 | 276-255-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WISE | VA |
| 2024-01-12 | 276-305-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BIGSTONEGP | VA |
| 2024-01-12 | 276-305-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BIGSTONEGP | VA |
| 2024-01-12 | 276-308-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LEBANON | VA |
| 2024-01-12 | 276-308-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LEBANON | VA |
| 2021-12-08 | 276-255-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WISE | VA |
| 2021-12-08 | 276-257-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BIGSTONEGP | VA |
| 2021-12-08 | 276-337-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | NORTON | VA |
| 2021-12-08 | 276-344-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LEBANON | VA |
| 2021-12-08 | 276-877-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | POUND | VA |
| 2021-12-08 | 276-972-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | COEBURN | VA |
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.