NumberResearchRecent thousands-block assignments
3 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 631
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 |
|---|---|---|---|---|---|---|---|
| 2003-06-20 | 631-613-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | BRIDGEMPTN | NY |
| 2003-06-20 | 631-907-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | E HAMPTON | NY |
| 2003-06-16 | 631-404-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | BRENTWOOD | NY |
| 2003-06-16 | 631-721-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2003-06-16 | 631-721-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2003-06-16 | 631-721-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2003-06-16 | 631-721-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2003-06-16 | 631-721-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2003-06-05 | 631-241-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-06-05 | 631-241-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-06-05 | 631-241-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-06-05 | 631-241-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-06-05 | 631-241-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-06-03 | 631-514-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-06-03 | 631-678-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-06-02 | 631-300-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | BRENTWOOD | NY |
| 2003-06-02 | 631-300-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BRENTWOOD | NY |
| 2003-05-16 | 631-205-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | YAPHANK | NY |
| 2003-05-16 | 631-240-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SMITHTOWN | NY |
| 2003-05-16 | 631-380-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | STONYBROOK | NY |
| 2003-05-16 | 631-489-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | W COMMACK | NY |
| 2003-05-16 | 631-551-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ST JAMES | NY |
| 2003-05-16 | 631-561-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SELDEN | NY |
| 2003-05-15 | 631-206-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAY SHORE | NY |
| 2003-05-15 | 631-208-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | RIVERHEAD | NY |
| 2003-05-15 | 631-213-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MIDLAND | NY |
| 2003-05-15 | 631-229-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | AMITYVILLE | NY |
| 2003-05-15 | 631-239-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NORTHPORT | NY |
| 2003-05-15 | 631-256-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SAYVILLE | NY |
| 2003-05-15 | 631-274-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | DEER PARK | NY |
| 2003-05-15 | 631-312-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PATCHOGUE | NY |
| 2003-05-15 | 631-326-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COMMACK | NY |
| 2003-05-15 | 631-412-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LINDENHST | NY |
| 2003-05-15 | 631-419-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAYPORT | NY |
| 2003-05-15 | 631-460-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | KINGS PARK | NY |
| 2003-05-15 | 631-481-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ISLIP | NY |
| 2003-05-15 | 631-517-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BABYLON | NY |
| 2003-05-15 | 631-776-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BELLPORT | NY |
| 2003-05-15 | 631-791-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PTJEFFERSN | NY |
| 2003-05-06 | 631-678-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-05-06 | 631-678-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-05-06 | 631-678-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-05-06 | 631-678-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-05-06 | 631-853-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | CENTRAISLP | NY |
| 2003-05-06 | 631-853-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | CENTRAISLP | NY |
| 2003-04-17 | 631-285-8XXX | 8000–8999 | Assigned | VERIZON NEW YORK, INC. | 9104 | RONKONKOMA | NY |
| 2003-04-17 | 631-285-9XXX | 9000–9999 | Assigned | VERIZON NEW YORK, INC. | 9104 | RONKONKOMA | NY |
| 2003-04-14 | 631-326-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | COMMACK | NY |
| 2003-04-09 | 631-514-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2003-04-09 | 631-678-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
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.