NumberResearchRecent thousands-block assignments
18 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, last 30 days — NPA 983
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-08-08 | 983-999-1XXX | 1000–1999 | Assigned | HD CARRIER LLC | 321J | DENVER | CO |
| 2023-08-08 | 983-999-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | DENVER | CO |
| 2023-08-08 | 983-999-9XXX | 9000–9999 | Assigned | WIDE VOICE, LLC - CO | 557H | DENVER | CO |
| 2023-07-27 | 983-888-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2023-07-27 | 983-888-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DENVER | CO |
| 2023-06-28 | 983-200-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2023-06-28 | 983-200-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2023-06-28 | 983-200-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2023-06-28 | 983-200-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2023-06-28 | 983-200-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CO | 026D | LONGMONT | CO |
| 2023-06-20 | 983-888-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2023-06-20 | 983-888-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2023-06-20 | 983-888-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2023-06-20 | 983-888-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2023-06-20 | 983-888-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | DENVER | CO |
| 2023-06-02 | 983-888-1XXX | 1000–1999 | Assigned | HD CARRIER LLC | 321J | DENVER | CO |
| 2023-06-02 | 983-888-8XXX | 8000–8999 | Assigned | WIDE VOICE, LLC - CO | 557H | DENVER | CO |
| 2023-05-23 | 983-983-0XXX | 0000–0999 | Assigned | EON TELECOM, INC. | 839J | LONGMONT | CO |
| 2023-05-15 | 983-200-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | LONGMONT | CO |
| 2023-05-09 | 983-222-2XXX | 2000–2999 | Assigned | LEAP TELECOM, LLC | 616J | ROGGEN | CO |
| 2023-05-09 | 983-983-9XXX | 9000–9999 | Assigned | LEAP TELECOM, LLC | 616J | LONGMONT | CO |
| 2023-04-07 | 983-200-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | LONGMONT | CO |
| 2023-03-29 | 983-983-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LONGMONT | CO |
| 2023-03-29 | 983-983-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LONGMONT | CO |
| 2023-03-29 | 983-983-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LONGMONT | 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.