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 |
|---|---|---|---|---|---|---|---|
| 2017-09-12 | 551-267-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2017-09-12 | 551-775-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | HACKENSACK | NJ |
| 2017-09-12 | 551-775-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | HACKENSACK | NJ |
| 2017-09-01 | 551-502-5XXX | 5000–5999 | Assigned | CABLEVISION LIGHTPATH, INC. - NJ | 4948 | RIDGEWOOD | NJ |
| 2017-08-31 | 551-220-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | JERSEYCITY | NJ |
| 2017-08-30 | 551-252-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | RAMSEY | NJ |
| 2017-08-30 | 551-264-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | RAMSEY | NJ |
| 2017-08-23 | 551-277-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2017-08-23 | 551-277-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2017-08-23 | 551-277-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2017-08-23 | 551-277-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2017-08-23 | 551-277-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2017-07-10 | 551-268-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2017-07-05 | 551-775-6XXX | 6000–6999 | Assigned | CABLEVISION LIGHTPATH, INC. - NJ | 4948 | HACKENSACK | NJ |
| 2017-06-16 | 551-502-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RIDGEWOOD | NJ |
| 2017-06-15 | 551-250-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | FAIR LAWN | NJ |
| 2017-06-15 | 551-272-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LEONIA | NJ |
| 2017-06-15 | 551-274-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | KEARNY | NJ |
| 2017-06-14 | 551-210-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DUMONT | NJ |
| 2017-06-13 | 551-502-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RIDGEWOOD | NJ |
| 2017-05-23 | 551-275-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | HACKENSACK | NJ |
| 2017-05-23 | 551-275-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | HACKENSACK | NJ |
| 2017-05-10 | 551-231-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | OAKLAND | NJ |
| 2017-05-10 | 551-276-7XXX | 7000–7999 | Assigned | CABLEVISION LIGHTPATH, INC. - NJ | 4948 | RIDGEWOOD | NJ |
| 2017-05-09 | 551-276-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | RIDGEWOOD | NJ |
| 2017-05-02 | 551-276-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | RIDGEWOOD | NJ |
| 2017-05-01 | 551-205-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | JERSEYCITY | NJ |
| 2017-05-01 | 551-234-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | CLIFFSIDE | NJ |
| 2017-04-24 | 551-231-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | OAKLAND | NJ |
| 2017-04-24 | 551-900-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | DUMONT | NJ |
| 2017-04-21 | 551-209-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | WYCKOFF | NJ |
| 2017-04-21 | 551-248-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | CLOSTER | NJ |
| 2017-04-21 | 551-249-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | PARK RIDGE | NJ |
| 2017-04-21 | 551-272-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | LEONIA | NJ |
| 2017-04-21 | 551-274-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | KEARNY | NJ |
| 2017-04-21 | 551-276-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | RIDGEWOOD | NJ |
| 2017-04-19 | 551-900-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | DUMONT | NJ |
| 2017-04-17 | 551-216-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2017-04-17 | 551-216-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | BAYONNE | NJ |
| 2017-03-27 | 551-250-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | FAIR LAWN | NJ |
| 2017-03-27 | 551-250-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | FAIR LAWN | NJ |
| 2017-03-14 | 551-217-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | RAMSEY | NJ |
| 2017-03-06 | 551-216-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | BAYONNE | NJ |
| 2017-03-06 | 551-234-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | CLIFFSIDE | NJ |
| 2017-03-03 | 551-205-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | JERSEYCITY | NJ |
| 2017-03-03 | 551-234-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | CLIFFSIDE | NJ |
| 2017-03-03 | 551-250-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | FAIR LAWN | NJ |
| 2017-03-03 | 551-264-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | RAMSEY | NJ |
| 2017-02-16 | 551-249-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | PARK RIDGE | NJ |
| 2017-02-06 | 551-246-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | FAIR LAWN | 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.