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 309
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-05-05 | 309-810-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PEORIA | IL |
| 2026-05-05 | 309-810-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PEORIA | IL |
| 2025-12-30 | 309-910-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | EDGINGTON | IL |
| 2025-12-03 | 309-503-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | TOWANDA | IL |
| 2024-10-31 | 309-835-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PEORIA | IL |
| 2024-10-31 | 309-835-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PEORIA | IL |
| 2024-05-28 | 309-701-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | SPRING BAY | IL |
| 2023-05-19 | 309-499-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LE ROY | IL |
| 2023-05-19 | 309-504-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DANVERS | IL |
| 2023-05-19 | 309-610-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | FORESTCITY | IL |
| 2023-05-19 | 309-632-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DELAVAN | IL |
| 2023-05-19 | 309-651-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | YATES CITY | IL |
| 2023-05-19 | 309-702-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WYOMING | IL |
| 2023-05-19 | 309-739-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | SECOR | IL |
| 2023-05-19 | 309-977-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | GREEN VLY | IL |
| 2023-05-18 | 309-564-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | EL PASO | IL |
| 2023-05-10 | 309-440-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DEER CREEK | IL |
| 2023-05-10 | 309-503-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | TOWANDA | IL |
| 2023-05-10 | 309-988-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LACON | IL |
| 2023-05-09 | 309-217-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PEKIN | IL |
| 2023-05-09 | 309-849-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | METAMORA | IL |
| 2023-03-29 | 309-931-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PEORIA | IL |
| 2023-02-06 | 309-809-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | REYNOLDS | IL |
| 2023-02-06 | 309-910-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | EDGINGTON | IL |
| 2022-11-21 | 309-933-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | GREENRIVER | IL |
| 2022-01-11 | 309-907-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MOLINE | IL |
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.