NumberResearchRecent thousands-block assignments
11 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, last 30 days — NPA 309
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-02-06 | 309-850-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | ILLINOISCY | IL |
| 2025-01-30 | 309-295-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-313-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-313-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-318-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-421-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-421-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-588-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-588-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-588-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-588-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-730-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-730-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-730-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-731-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-731-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-731-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-731-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-833-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-836-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-30 | 309-837-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MACOMB | IL |
| 2025-01-27 | 309-913-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | CANTON | IL |
| 2025-01-17 | 309-247-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SAN JOSE | IL |
| 2025-01-15 | 309-380-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROCKISLAND | IL |
| 2025-01-15 | 309-380-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROCKISLAND | IL |
| 2025-01-14 | 309-651-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | YATES CITY | IL |
| 2025-01-14 | 309-651-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | YATES CITY | IL |
| 2025-01-08 | 309-259-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | MACOMB | IL |
| 2025-01-07 | 309-969-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MOLINE | IL |
| 2025-01-07 | 309-969-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MOLINE | IL |
| 2024-12-02 | 309-260-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BLOOMINGTN | IL |
| 2024-12-02 | 309-981-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PEORIA | IL |
| 2024-11-23 | 309-217-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-217-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-217-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-217-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-217-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-902-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-902-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-919-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-919-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-919-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PEKIN | IL |
| 2024-11-23 | 309-988-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LACON | IL |
| 2024-11-15 | 309-961-1XXX | 1000–1999 | Assigned | NUSO, LLC | 478J | BLOOMINGTN | IL |
| 2024-11-12 | 309-943-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PEORIA | IL |
| 2024-11-12 | 309-943-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PEORIA | IL |
| 2024-11-12 | 309-943-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PEORIA | IL |
| 2024-11-12 | 309-943-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PEORIA | 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 |
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.