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 |
|---|---|---|---|---|---|---|---|
| 2024-10-14 | 551-382-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | ENGLEWOOD | NJ |
| 2024-10-14 | 551-391-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | TEANECK | NJ |
| 2024-10-14 | 551-395-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | CLOSTER | NJ |
| 2024-10-14 | 551-398-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | WESTWOOD | NJ |
| 2024-10-02 | 551-279-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RAMSEY | NJ |
| 2024-10-02 | 551-279-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RAMSEY | NJ |
| 2024-10-02 | 551-407-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | KEARNY | NJ |
| 2024-09-26 | 551-218-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | RAMSEY | NJ |
| 2024-09-26 | 551-288-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | CLOSTER | NJ |
| 2024-09-26 | 551-317-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | DUMONT | NJ |
| 2024-09-26 | 551-378-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLIFFSIDE | NJ |
| 2024-09-26 | 551-378-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLIFFSIDE | NJ |
| 2024-09-26 | 551-380-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | RUTHERFORD | NJ |
| 2024-09-26 | 551-380-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RUTHERFORD | NJ |
| 2024-09-26 | 551-380-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RUTHERFORD | NJ |
| 2024-09-26 | 551-396-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2024-09-26 | 551-396-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2024-09-26 | 551-997-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2024-09-26 | 551-997-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2024-09-26 | 551-997-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2024-09-25 | 551-382-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - NJ | 7142 | ENGLEWOOD | NJ |
| 2024-09-19 | 551-405-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-19 | 551-405-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-19 | 551-405-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-19 | 551-405-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-19 | 551-405-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-19 | 551-405-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-19 | 551-405-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-19 | 551-405-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-19 | 551-405-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-19 | 551-405-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2024-09-18 | 551-396-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-18 | 551-396-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-18 | 551-396-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-18 | 551-396-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-18 | 551-396-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-18 | 551-403-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-18 | 551-403-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-18 | 551-403-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-18 | 551-403-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-18 | 551-403-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2024-09-11 | 551-380-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | RUTHERFORD | NJ |
| 2024-09-11 | 551-380-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | RUTHERFORD | NJ |
| 2024-09-11 | 551-386-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | RIDGEWOOD | NJ |
| 2024-09-11 | 551-386-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | RIDGEWOOD | NJ |
| 2024-09-10 | 551-201-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2024-09-10 | 551-201-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2024-09-10 | 551-383-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NJ | 637C | ORADELL | NJ |
| 2024-09-10 | 551-391-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | TEANECK | NJ |
| 2024-09-10 | 551-552-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | CRAGMERE | 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.