NumberResearchRecent thousands-block assignments
3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 |
|---|---|---|---|---|---|---|---|
| 2009-05-13 | 631-892-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BAY SHORE | NY |
| 2009-05-11 | 631-930-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | CENTRAISLP | NY |
| 2009-05-11 | 631-930-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | CENTRAISLP | NY |
| 2009-05-07 | 631-579-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2009-05-06 | 631-333-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | GREENPORT | NY |
| 2009-05-06 | 631-333-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | GREENPORT | NY |
| 2009-05-06 | 631-655-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RIVERHEAD | NY |
| 2009-04-23 | 631-494-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | RIVERHEAD | NY |
| 2009-04-22 | 631-315-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MATTITUCK | NY |
| 2009-04-22 | 631-458-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SAG HARBOR | NY |
| 2009-04-22 | 631-536-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | EASTPORT | NY |
| 2009-04-22 | 631-593-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GREENPORT | NY |
| 2009-04-22 | 631-594-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HAMPTNBAYS | NY |
| 2009-04-22 | 631-596-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | QUOGUE | NY |
| 2009-04-22 | 631-602-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SHELTER IS | NY |
| 2009-04-22 | 631-604-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | E HAMPTON | NY |
| 2009-04-22 | 631-616-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PECONIC | NY |
| 2009-04-22 | 631-779-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | JAMESPORT | NY |
| 2009-04-22 | 631-876-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SOUTHOLD | NY |
| 2009-04-22 | 631-909-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CTRMORICHS | NY |
| 2009-04-20 | 631-606-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | NORTHPORT | NY |
| 2009-04-17 | 631-627-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PATCHOGUE | NY |
| 2009-04-13 | 631-532-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | AMITYVILLE | NY |
| 2009-04-13 | 631-598-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | AMITYVILLE | NY |
| 2009-04-13 | 631-702-8XXX | 8000–8999 | Assigned | CABLEVISION LIGHTPATH, INC. - NY | 7126 | SOUTHAMPTN | NY |
| 2009-04-03 | 631-247-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | FARMINGDL | NY |
| 2009-04-03 | 631-522-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | DEER PARK | NY |
| 2009-04-03 | 631-792-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BABYLON | NY |
| 2009-04-03 | 631-792-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BABYLON | NY |
| 2009-04-03 | 631-792-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BABYLON | NY |
| 2009-04-03 | 631-792-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BABYLON | NY |
| 2009-04-01 | 631-593-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | GREENPORT | NY |
| 2009-04-01 | 631-946-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SELDEN | NY |
| 2009-03-31 | 631-609-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | BRENTWOOD | NY |
| 2009-03-30 | 631-599-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | RIVERHEAD | NY |
| 2009-03-30 | 631-812-6XXX | 6000–6999 | Assigned | AT&T - LOCAL | 7421 | HUNTINGTON | NY |
| 2009-03-19 | 631-866-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | BELLPORT | NY |
| 2009-03-16 | 631-264-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | AMITYVILLE | NY |
| 2009-03-16 | 631-264-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | AMITYVILLE | NY |
| 2009-03-16 | 631-264-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | AMITYVILLE | NY |
| 2009-03-13 | 631-629-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HUNTINGTON | NY |
| 2009-03-11 | 631-579-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2009-03-09 | 631-415-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | CENTRAISLP | NY |
| 2009-03-09 | 631-419-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BAYPORT | NY |
| 2009-03-06 | 631-403-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | PTJEFFERSN | NY |
| 2009-03-06 | 631-627-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PATCHOGUE | NY |
| 2009-03-06 | 631-891-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PATCHOGUE | NY |
| 2009-03-02 | 631-270-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | FARMINGDL | NY |
| 2009-03-02 | 631-832-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | BAYPORT | NY |
| 2009-03-02 | 631-860-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | DEER PARK | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.