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 314
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-11-13 | 314-636-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | OAKVILLE | MO |
| 2023-11-13 | 314-636-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | OAKVILLE | MO |
| 2022-01-05 | 314-936-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CREVECOEUR | MO |
| 2022-01-05 | 314-967-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LADUE | MO |
| 2020-12-04 | 314-857-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ST LOUIS | MO |
| 2016-06-14 | 314-230-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ST LOUIS | MO |
| 2013-11-08 | 314-626-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | KIRKWOOD | MO |
| 2013-11-04 | 314-380-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | OAKVILLE | MO |
| 2013-11-04 | 314-690-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | SAPPINGTON | MO |
| 2013-11-04 | 314-695-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LADUE | MO |
| 2013-11-04 | 314-782-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | MEHLVILLE | MO |
| 2013-11-01 | 314-384-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CREVECOEUR | MO |
| 2013-10-22 | 314-899-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ST LOUIS | MO |
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.