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 |
|---|---|---|---|---|---|---|---|
| 2024-07-25 | 283-219-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | HAMILTON | OH |
| 2024-07-25 | 283-219-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | HAMILTON | OH |
| 2024-07-10 | 283-219-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HAMILTON | OH |
| 2024-06-26 | 283-222-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-06-26 | 283-222-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-06-26 | 283-222-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-06-26 | 283-223-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-06-26 | 283-223-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-06-26 | 283-223-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-06-26 | 283-223-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2024-06-21 | 283-216-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OH | 464C | BETHANY | OH |
| 2024-06-21 | 283-218-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OH | 464C | CLERMONT | OH |
| 2024-06-21 | 283-218-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OH | 464C | CLERMONT | OH |
| 2024-06-21 | 283-444-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OH | 464C | BETHEL | OH |
| 2024-06-18 | 283-223-6XXX | 6000–6999 | Assigned | ONVOY, LLC - OH | 464C | CINCINNATI | OH |
| 2024-06-18 | 283-223-7XXX | 7000–7999 | Assigned | ONVOY, LLC - OH | 464C | CINCINNATI | OH |
| 2024-06-18 | 283-223-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OH | 464C | CINCINNATI | OH |
| 2024-06-18 | 283-223-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OH | 464C | CINCINNATI | OH |
| 2024-06-14 | 283-200-7XXX | 7000–7999 | Assigned | ONVOY, LLC - OH | 464C | TRENTON | OH |
| 2024-06-14 | 283-202-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OH | 464C | MORROW | OH |
| 2024-06-14 | 283-207-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OH | 464C | SHANDON | OH |
| 2024-06-14 | 283-210-2XXX | 2000–2999 | Assigned | ONVOY, LLC - OH | 464C | MASON | OH |
| 2024-06-14 | 283-214-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OH | 464C | NEWTONSVL | OH |
| 2024-06-13 | 283-222-4XXX | 4000–4999 | Assigned | NUSO, LLC | 478J | CINCINNATI | OH |
| 2024-06-13 | 283-222-5XXX | 5000–5999 | Assigned | NUSO, LLC | 478J | CINCINNATI | OH |
| 2024-06-12 | 283-208-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OH | 464C | HARRISON | OH |
| 2024-06-07 | 283-219-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMILTON | OH |
| 2024-06-07 | 283-219-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMILTON | OH |
| 2024-06-07 | 283-219-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMILTON | OH |
| 2024-06-07 | 283-222-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OH | 464C | CINCINNATI | OH |
| 2024-05-22 | 283-218-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CLERMONT | OH |
| 2024-05-14 | 283-218-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OH | 464C | CLERMONT | OH |
| 2024-05-14 | 283-222-1XXX | 1000–1999 | Assigned | ONVOY, LLC - OH | 464C | CINCINNATI | OH |
| 2024-04-29 | 283-200-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TRENTON | OH |
| 2024-04-17 | 283-223-1XXX | 1000–1999 | Assigned | CALLWORKS CORPORATION | 475J | CINCINNATI | OH |
| 2024-04-09 | 283-200-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OH | 464C | TRENTON | OH |
| 2024-04-02 | 283-222-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OH | 464C | CINCINNATI | OH |
| 2024-03-19 | 283-220-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | CINCINNATI | OH |
| 2024-03-19 | 283-220-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | CINCINNATI | OH |
| 2024-03-12 | 283-222-2XXX | 2000–2999 | Assigned | WADDELL SOLUTIONS GROUP LLC | 742J | CINCINNATI | OH |
| 2024-03-07 | 283-202-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OH | 464C | MORROW | OH |
| 2024-03-07 | 283-221-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OH | 464C | LEBANON | OH |
| 2024-03-05 | 283-220-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CINCINNATI | OH |
| 2024-03-05 | 283-220-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CINCINNATI | OH |
| 2024-03-05 | 283-220-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CINCINNATI | OH |
| 2024-03-05 | 283-220-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CINCINNATI | OH |
| 2024-03-05 | 283-220-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CINCINNATI | OH |
| 2024-03-05 | 283-220-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | CINCINNATI | OH |
| 2024-03-05 | 283-220-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | CINCINNATI | OH |
| 2024-03-05 | 283-220-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | 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.