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 |
|---|---|---|---|---|---|---|---|
| 2023-09-21 | 551-363-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NJ | 637C | BAYONNE | NJ |
| 2023-09-21 | 551-366-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | ENGLEWOOD | NJ |
| 2023-09-21 | 551-367-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | FAIR LAWN | NJ |
| 2023-09-21 | 551-367-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | FAIR LAWN | NJ |
| 2023-09-21 | 551-369-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | TEANECK | NJ |
| 2023-09-21 | 551-372-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2023-09-21 | 551-372-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2023-09-21 | 551-372-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2023-09-21 | 551-374-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | DUMONT | NJ |
| 2023-09-21 | 551-379-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | CLIFFSIDE | NJ |
| 2023-09-21 | 551-380-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | RUTHERFORD | NJ |
| 2023-09-21 | 551-380-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | RUTHERFORD | NJ |
| 2023-09-21 | 551-382-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | ENGLEWOOD | NJ |
| 2023-09-21 | 551-382-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | ENGLEWOOD | NJ |
| 2023-09-21 | 551-383-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | ORADELL | NJ |
| 2023-09-21 | 551-383-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | ORADELL | NJ |
| 2023-09-21 | 551-383-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | ORADELL | NJ |
| 2023-09-21 | 551-451-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | CLIFFSIDE | NJ |
| 2023-09-21 | 551-451-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | CLIFFSIDE | NJ |
| 2023-09-21 | 551-766-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | RUTHERFORD | NJ |
| 2023-09-21 | 551-788-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | PARK RIDGE | NJ |
| 2023-09-21 | 551-788-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | PARK RIDGE | NJ |
| 2023-09-21 | 551-899-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | HASBROKHTS | NJ |
| 2023-09-21 | 551-966-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | FAIR LAWN | NJ |
| 2023-09-20 | 551-378-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | CLIFFSIDE | NJ |
| 2023-09-20 | 551-378-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | CLIFFSIDE | NJ |
| 2023-09-19 | 551-374-1XXX | 1000–1999 | Assigned | VONAGE AMERICA LLC | 197D | DUMONT | NJ |
| 2023-09-19 | 551-374-4XXX | 4000–4999 | Assigned | VONAGE AMERICA LLC | 197D | DUMONT | NJ |
| 2023-09-18 | 551-289-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
| 2023-09-18 | 551-361-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
| 2023-09-18 | 551-361-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
| 2023-09-18 | 551-368-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
| 2023-09-18 | 551-375-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | UNION CITY | NJ |
| 2023-09-18 | 551-375-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | UNION CITY | NJ |
| 2023-09-18 | 551-377-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | UNION CITY | NJ |
| 2023-09-18 | 551-377-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | UNION CITY | NJ |
| 2023-09-11 | 551-362-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | JERSEYCITY | NJ |
| 2023-09-11 | 551-362-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | JERSEYCITY | NJ |
| 2023-09-11 | 551-371-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | JERSEYCITY | NJ |
| 2023-09-11 | 551-376-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | JERSEYCITY | NJ |
| 2023-09-11 | 551-376-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | JERSEYCITY | NJ |
| 2023-09-11 | 551-376-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | JERSEYCITY | NJ |
| 2023-09-07 | 551-364-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2023-09-07 | 551-364-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2023-09-07 | 551-364-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2023-09-07 | 551-364-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2023-09-07 | 551-375-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-09-07 | 551-375-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-09-07 | 551-375-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2023-09-05 | 551-371-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JERSEYCITY | 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.