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 |
|---|---|---|---|---|---|---|---|
| 2026-07-22 | 551-408-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NJ | 637C | DUMONT | NJ |
| 2026-07-22 | 551-408-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | DUMONT | NJ |
| 2026-07-22 | 551-416-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | CRAGMERE | NJ |
| 2026-07-20 | 551-423-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-07-20 | 551-423-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-07-09 | 551-436-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | ENGLEWOOD | NJ |
| 2026-07-09 | 551-436-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | ENGLEWOOD | NJ |
| 2026-07-09 | 551-437-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | TEANECK | NJ |
| 2026-06-30 | 551-435-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | BAYONNE | NJ |
| 2026-06-30 | 551-435-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | BAYONNE | NJ |
| 2026-06-30 | 551-435-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | BAYONNE | NJ |
| 2026-06-26 | 551-428-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2026-06-26 | 551-997-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2026-06-26 | 551-997-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2026-06-15 | 551-410-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RIDGEWOOD | NJ |
| 2026-06-15 | 551-425-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RAMSEY | NJ |
| 2026-06-15 | 551-435-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2026-06-01 | 551-395-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | CLOSTER | NJ |
| 2026-06-01 | 551-408-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | DUMONT | NJ |
| 2026-06-01 | 551-413-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2026-06-01 | 551-415-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | LEONIA | NJ |
| 2026-06-01 | 551-418-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | ORADELL | NJ |
| 2026-06-01 | 551-425-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | RAMSEY | NJ |
| 2026-06-01 | 551-995-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | OAKLAND | NJ |
| 2026-05-21 | 551-419-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | FAIR LAWN | NJ |
| 2026-05-21 | 551-421-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | UNION CITY | NJ |
| 2026-05-20 | 551-416-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | CRAGMERE | NJ |
| 2026-05-08 | 551-433-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-08 | 551-433-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-08 | 551-433-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-08 | 551-433-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-08 | 551-433-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-07 | 551-428-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2026-05-07 | 551-433-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | HACKENSACK | NJ |
| 2026-05-07 | 551-434-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | BAYONNE | NJ |
| 2026-04-29 | 551-433-6XXX | 6000–6999 | Assigned | AHOI LLC | 883K | HACKENSACK | NJ |
| 2026-04-29 | 551-435-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | BAYONNE | NJ |
| 2026-04-27 | 551-372-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2026-04-27 | 551-407-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2026-04-24 | 551-395-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | CLOSTER | NJ |
| 2026-04-14 | 551-391-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NJ | 637C | TEANECK | NJ |
| 2026-04-14 | 551-408-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | DUMONT | NJ |
| 2026-04-08 | 551-431-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2026-03-31 | 551-428-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2026-03-31 | 551-428-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2026-03-31 | 551-428-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2026-03-31 | 551-428-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2026-03-31 | 551-428-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2026-03-18 | 551-431-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2026-03-16 | 551-435-0XXX | 0000–0999 | Assigned | VOIP INNOVATIONS, LLC | 597F | BAYONNE | 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.