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 |
|---|---|---|---|---|---|---|---|
| 2015-06-17 | 551-262-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RAMSEY | NJ |
| 2015-06-08 | 551-235-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2015-06-08 | 551-235-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2015-06-08 | 551-235-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2015-06-08 | 551-235-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2015-06-08 | 551-235-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2015-06-08 | 551-235-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2015-06-08 | 551-235-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2015-06-08 | 551-252-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | RAMSEY | NJ |
| 2015-06-08 | 551-262-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | RAMSEY | NJ |
| 2015-06-04 | 551-227-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JERSEYCITY | NJ |
| 2015-06-01 | 551-900-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | DUMONT | NJ |
| 2015-05-22 | 551-254-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | UNION CITY | NJ |
| 2015-05-18 | 551-247-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JERSEYCITY | NJ |
| 2015-05-18 | 551-253-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2015-05-14 | 551-233-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | JERSEYCITY | NJ |
| 2015-05-14 | 551-236-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | CLOSTER | NJ |
| 2015-05-14 | 551-247-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2015-05-14 | 551-247-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | JERSEYCITY | NJ |
| 2015-05-06 | 551-214-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | BAYONNE | NJ |
| 2015-05-06 | 551-214-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | BAYONNE | NJ |
| 2015-04-17 | 551-231-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | OAKLAND | NJ |
| 2015-04-17 | 551-254-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2015-04-17 | 551-254-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | UNION CITY | NJ |
| 2015-04-16 | 551-245-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | HACKENSACK | NJ |
| 2015-04-16 | 551-258-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2015-04-16 | 551-258-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2015-04-16 | 551-258-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2015-04-16 | 551-258-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2015-04-16 | 551-258-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2015-04-16 | 551-258-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | BAYONNE | NJ |
| 2015-04-15 | 551-225-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | JERSEYCITY | NJ |
| 2015-04-13 | 551-236-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLOSTER | NJ |
| 2015-04-13 | 551-236-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLOSTER | NJ |
| 2015-04-13 | 551-236-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLOSTER | NJ |
| 2015-04-13 | 551-236-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLOSTER | NJ |
| 2015-04-13 | 551-242-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLIFFSIDE | NJ |
| 2015-04-13 | 551-242-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLIFFSIDE | NJ |
| 2015-04-03 | 551-256-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | JERSEYCITY | NJ |
| 2015-03-31 | 551-257-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | UNION CITY | NJ |
| 2015-03-24 | 551-253-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | KEARNY | NJ |
| 2015-03-17 | 551-253-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | KEARNY | NJ |
| 2015-02-24 | 551-262-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NJ | 6623 | RAMSEY | NJ |
| 2015-02-23 | 551-232-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | BAYONNE | NJ |
| 2015-02-23 | 551-800-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WESTWOOD | NJ |
| 2015-02-23 | 551-900-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | DUMONT | NJ |
| 2015-02-20 | 551-236-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CLOSTER | NJ |
| 2015-02-20 | 551-252-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | RAMSEY | NJ |
| 2015-02-19 | 551-256-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | JERSEYCITY | NJ |
| 2015-02-11 | 551-256-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 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.