NumberResearchRecent thousands-block assignments
6 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 283
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 |
|---|---|---|---|---|---|---|---|
| 2024-12-26 | 283-232-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LEBANON | OH |
| 2024-12-26 | 283-232-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LEBANON | OH |
| 2024-12-20 | 283-217-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | LTL MIAMI | OH |
| 2024-12-19 | 283-204-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MORNINGSUN | OH |
| 2024-12-19 | 283-206-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WILLIAMSBG | OH |
| 2024-12-19 | 283-207-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SHANDON | OH |
| 2024-12-19 | 283-216-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BETHANY | OH |
| 2024-12-19 | 283-218-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLERMONT | OH |
| 2024-12-19 | 283-228-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SEVEN MILE | OH |
| 2024-12-13 | 283-227-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - OH | 7532 | CINCINNATI | OH |
| 2024-12-12 | 283-202-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OH | 464C | MORROW | OH |
| 2024-12-12 | 283-208-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OH | 464C | HARRISON | OH |
| 2024-11-20 | 283-226-1XXX | 1000–1999 | Assigned | ONVOY, LLC - OH | 464C | TRENTON | OH |
| 2024-11-18 | 283-225-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HAMILTON | OH |
| 2024-11-12 | 283-225-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMILTON | OH |
| 2024-11-07 | 283-202-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OH | 464C | MORROW | OH |
| 2024-11-07 | 283-221-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OH | 464C | LEBANON | OH |
| 2024-11-06 | 283-223-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-11-06 | 283-227-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-11-06 | 283-227-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-11-06 | 283-227-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-11-06 | 283-227-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-10-22 | 283-225-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF OHIO, LLC - OH | 284F | HAMILTON | OH |
| 2024-10-16 | 283-210-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MASON | OH |
| 2024-10-16 | 283-210-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MASON | OH |
| 2024-10-14 | 283-208-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OH | 464C | HARRISON | OH |
| 2024-10-08 | 283-228-0XXX | 0000–0999 | Assigned | FIVE9, INC. | 598J | SEVEN MILE | OH |
| 2024-10-03 | 283-224-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | CINCINNATI | OH |
| 2024-10-03 | 283-224-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | CINCINNATI | OH |
| 2024-10-03 | 283-224-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | CINCINNATI | OH |
| 2024-10-03 | 283-224-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | CINCINNATI | OH |
| 2024-10-02 | 283-227-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-10-02 | 283-227-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-10-02 | 283-227-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-10-01 | 283-227-0XXX | 0000–0999 | Assigned | LEAP TELECOM, LLC | 616J | CINCINNATI | OH |
| 2024-09-26 | 283-202-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OH | 464C | MORROW | OH |
| 2024-09-25 | 283-217-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | LTL MIAMI | OH |
| 2024-09-10 | 283-226-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OH | 464C | TRENTON | OH |
| 2024-09-09 | 283-225-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMILTON | OH |
| 2024-09-06 | 283-221-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LEBANON | OH |
| 2024-09-06 | 283-224-5XXX | 5000–5999 | Assigned | FIVE9, INC. | 598J | CINCINNATI | OH |
| 2024-09-06 | 283-888-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HAMILTON | OH |
| 2024-08-14 | 283-219-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HAMILTON | OH |
| 2024-08-14 | 283-219-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HAMILTON | OH |
| 2024-08-14 | 283-888-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMILTON | OH |
| 2024-08-14 | 283-888-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMILTON | OH |
| 2024-08-13 | 283-224-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CINCINNATI | OH |
| 2024-08-13 | 283-224-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CINCINNATI | OH |
| 2024-08-13 | 283-224-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CINCINNATI | OH |
| 2024-08-13 | 283-224-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CINCINNATI | OH |
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.