NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 346
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | 346-935-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HSTNSUBURB | TX |
| 2026-08-18 | 346-935-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HSTNSUBURB | TX |
| 2026-08-13 | 346-821-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | SPLENDORA | TX |
| 2026-06-05 | 346-928-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CYPRESS | TX |
| 2026-04-14 | 346-870-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LANGHAMCRK | TX |
| 2026-04-02 | 346-924-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2026-04-02 | 346-924-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2026-04-02 | 346-924-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2026-04-02 | 346-924-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2026-03-06 | 346-709-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LEAGUECITY | TX |
| 2026-02-24 | 346-389-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BEACH CITY | TX |
| 2026-01-16 | 346-909-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BAMMEL | TX |
| 2026-01-16 | 346-909-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BAMMEL | TX |
| 2025-12-04 | 346-906-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-12-04 | 346-906-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-12-04 | 346-906-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-12-04 | 346-906-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-12-04 | 346-906-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-11-26 | 346-440-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HSTNSUBURB | TX |
| 2025-09-03 | 346-709-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LEAGUECITY | TX |
| 2025-05-12 | 346-870-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LANGHAMCRK | TX |
| 2025-04-22 | 346-869-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HSTNSUBURB | TX |
| 2025-04-22 | 346-869-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HSTNSUBURB | TX |
| 2025-04-22 | 346-869-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HSTNSUBURB | TX |
| 2025-02-18 | 346-860-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2024-11-04 | 346-821-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | SPLENDORA | TX |
| 2024-11-04 | 346-821-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | SPLENDORA | TX |
| 2024-09-25 | 346-455-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2024-09-25 | 346-506-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2024-08-15 | 346-796-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CYPRESS | TX |
| 2024-08-15 | 346-796-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CYPRESS | TX |
| 2024-07-17 | 346-709-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LEAGUECITY | TX |
| 2024-07-17 | 346-709-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LEAGUECITY | TX |
| 2024-07-17 | 346-792-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LANGHAMCRK | TX |
| 2024-07-17 | 346-792-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LANGHAMCRK | TX |
| 2024-07-17 | 346-792-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LANGHAMCRK | TX |
| 2024-07-09 | 346-828-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | SPRING | TX |
| 2024-06-07 | 346-768-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BAMMEL | TX |
| 2024-06-07 | 346-768-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BAMMEL | TX |
| 2024-06-03 | 346-809-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2024-06-03 | 346-809-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2024-06-03 | 346-809-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.