NumberResearchRecent thousands-block assignments
29 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 |
|---|---|---|---|---|---|---|---|
| 2021-06-15 | 551-651-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | OAKLAND | NJ |
| 2021-06-15 | 551-837-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
| 2021-06-15 | 551-842-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | JERSEYCITY | NJ |
| 2021-06-11 | 551-309-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | JERSEYCITY | NJ |
| 2021-06-11 | 551-430-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | JERSEYCITY | NJ |
| 2021-06-11 | 551-430-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | JERSEYCITY | NJ |
| 2021-06-11 | 551-842-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | JERSEYCITY | NJ |
| 2021-06-08 | 551-316-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | CLIFFSIDE | NJ |
| 2021-06-03 | 551-318-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | BAYONNE | NJ |
| 2021-06-03 | 551-318-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | BAYONNE | NJ |
| 2021-06-03 | 551-318-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | BAYONNE | NJ |
| 2021-06-02 | 551-842-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2021-06-02 | 551-842-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2021-06-02 | 551-842-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2021-06-02 | 551-842-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2021-06-02 | 551-842-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2021-05-29 | 551-529-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2021-05-29 | 551-529-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2021-05-27 | 551-320-7XXX | 7000–7999 | Assigned | CABLEVISION LIGHTPATH, INC. - NJ | 4948 | RUTHERFORD | NJ |
| 2021-05-27 | 551-320-8XXX | 8000–8999 | Assigned | CABLEVISION LIGHTPATH, INC. - NJ | 4948 | RUTHERFORD | NJ |
| 2021-05-19 | 551-455-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | FAIR LAWN | NJ |
| 2021-05-19 | 551-455-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | FAIR LAWN | NJ |
| 2021-05-08 | 551-316-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | CLIFFSIDE | NJ |
| 2021-05-05 | 551-318-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2021-05-05 | 551-318-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2021-05-05 | 551-318-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2021-05-05 | 551-318-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2021-05-05 | 551-318-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2021-04-29 | 551-309-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JERSEYCITY | NJ |
| 2021-04-26 | 551-316-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CLIFFSIDE | NJ |
| 2021-04-26 | 551-786-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | UNION CITY | NJ |
| 2021-04-24 | 551-288-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | CLOSTER | NJ |
| 2021-04-24 | 551-288-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | CLOSTER | NJ |
| 2021-04-24 | 551-290-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2021-04-24 | 551-290-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2021-04-24 | 551-290-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2021-04-22 | 551-381-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RUTHERFORD | NJ |
| 2021-04-20 | 551-815-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RIDGEWOOD | NJ |
| 2021-04-20 | 551-815-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RIDGEWOOD | NJ |
| 2021-04-14 | 551-294-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RAMSEY | NJ |
| 2021-04-14 | 551-294-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RAMSEY | NJ |
| 2021-04-13 | 551-294-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RAMSEY | NJ |
| 2021-04-13 | 551-306-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2021-04-13 | 551-306-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2021-04-13 | 551-381-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RUTHERFORD | NJ |
| 2021-04-13 | 551-600-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WYCKOFF | NJ |
| 2021-04-13 | 551-751-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WESTWOOD | NJ |
| 2021-04-13 | 551-786-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | UNION CITY | NJ |
| 2021-04-13 | 551-815-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RIDGEWOOD | NJ |
| 2021-04-12 | 551-321-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PARK RIDGE | NJ |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.