NumberResearchRecent thousands-block assignments
29 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, last 30 days — NPA 551
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 |
|---|---|---|---|---|---|---|---|
| 2023-09-05 | 551-371-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JERSEYCITY | NJ |
| 2023-09-05 | 551-375-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | UNION CITY | NJ |
| 2023-08-24 | 551-357-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | OAKLAND | NJ |
| 2023-08-24 | 551-727-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | BAYONNE | NJ |
| 2023-08-23 | 551-451-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | CLIFFSIDE | NJ |
| 2023-08-23 | 551-451-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | CLIFFSIDE | NJ |
| 2023-08-23 | 551-451-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | CLIFFSIDE | NJ |
| 2023-08-23 | 551-451-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | CLIFFSIDE | NJ |
| 2023-08-16 | 551-324-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | WESTWOOD | NJ |
| 2023-08-16 | 551-357-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | OAKLAND | NJ |
| 2023-08-16 | 551-360-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | LEONIA | NJ |
| 2023-08-16 | 551-360-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | LEONIA | NJ |
| 2023-08-16 | 551-371-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JERSEYCITY | NJ |
| 2023-08-16 | 551-733-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | RIDGEWOOD | NJ |
| 2023-08-16 | 551-733-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | RIDGEWOOD | NJ |
| 2023-08-16 | 551-733-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | RIDGEWOOD | NJ |
| 2023-08-10 | 551-203-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2023-08-10 | 551-203-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2023-08-10 | 551-205-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2023-08-10 | 551-205-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2023-08-10 | 551-229-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2023-08-10 | 551-277-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2023-08-10 | 551-277-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2023-08-10 | 551-362-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2023-07-25 | 551-374-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | DUMONT | NJ |
| 2023-07-18 | 551-371-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JERSEYCITY | NJ |
| 2023-07-18 | 551-371-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JERSEYCITY | NJ |
| 2023-07-18 | 551-371-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JERSEYCITY | NJ |
| 2023-07-18 | 551-371-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JERSEYCITY | NJ |
| 2023-07-18 | 551-371-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JERSEYCITY | NJ |
| 2023-07-12 | 551-955-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | WYCKOFF | NJ |
| 2023-07-12 | 551-955-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NJ | 637C | WYCKOFF | NJ |
| 2023-07-12 | 551-955-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | WYCKOFF | NJ |
| 2023-06-29 | 551-375-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-06-29 | 551-375-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-06-29 | 551-375-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-06-29 | 551-375-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-06-27 | 551-588-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | RAMSEY | NJ |
| 2023-06-09 | 551-374-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DUMONT | NJ |
| 2023-05-31 | 551-373-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-05-31 | 551-373-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-05-31 | 551-373-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-05-24 | 551-374-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | DUMONT | NJ |
| 2023-05-24 | 551-374-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | DUMONT | NJ |
| 2023-05-22 | 551-351-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | CRAGMERE | NJ |
| 2023-05-22 | 551-355-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | ENGLEWOOD | NJ |
| 2023-05-22 | 551-368-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
| 2023-05-22 | 551-368-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
| 2023-05-22 | 551-368-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
| 2023-05-22 | 551-368-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
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.