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 |
|---|---|---|---|---|---|---|---|
| 2005-03-29 | 631-881-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | CENTRAISLP | NY |
| 2005-03-25 | 631-676-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | RONKONKOMA | NY |
| 2005-03-25 | 631-676-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | RONKONKOMA | NY |
| 2005-03-25 | 631-902-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RIVERHEAD | NY |
| 2005-03-25 | 631-902-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RIVERHEAD | NY |
| 2005-03-25 | 631-902-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RIVERHEAD | NY |
| 2005-03-25 | 631-903-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SOUTHAMPTN | NY |
| 2005-03-25 | 631-903-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SOUTHAMPTN | NY |
| 2005-03-23 | 631-993-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | COMMACK | NY |
| 2005-03-21 | 631-350-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | HUNTINGTON | NY |
| 2005-03-21 | 631-409-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | NASSAUZN09 | NY |
| 2005-03-21 | 631-528-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | KINGS PARK | NY |
| 2005-03-21 | 631-702-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | SOUTHAMPTN | NY |
| 2005-03-21 | 631-771-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | E HAMPTON | NY |
| 2005-03-21 | 631-773-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | FARMINGDL | NY |
| 2005-03-21 | 631-820-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | RONKONKOMA | NY |
| 2005-03-21 | 631-898-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | WESTHAMPTN | NY |
| 2005-03-21 | 631-960-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ISLIP | NY |
| 2005-03-15 | 631-873-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | BRENTWOOD | NY |
| 2005-03-10 | 631-707-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BRENTWOOD | NY |
| 2005-03-10 | 631-707-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BRENTWOOD | NY |
| 2005-03-10 | 631-747-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2005-03-10 | 631-747-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2005-03-10 | 631-747-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2005-03-10 | 631-747-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2005-03-10 | 631-747-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2005-03-10 | 631-846-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | SELDEN | NY |
| 2005-03-07 | 631-865-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | DEER PARK | NY |
| 2005-03-04 | 631-404-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2005-03-04 | 631-404-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2005-03-02 | 631-676-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | RONKONKOMA | NY |
| 2005-02-22 | 631-223-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HUNTINGTON | NY |
| 2005-02-22 | 631-223-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HUNTINGTON | NY |
| 2005-02-22 | 631-458-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | SAG HARBOR | NY |
| 2005-02-22 | 631-458-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | SAG HARBOR | NY |
| 2005-02-22 | 631-548-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | RIVERHEAD | NY |
| 2005-02-22 | 631-759-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HUNTINGTON | NY |
| 2005-02-18 | 631-787-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | CENTRAISLP | NY |
| 2005-02-15 | 631-983-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BABYLON | NY |
| 2005-02-10 | 631-240-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | SMITHTOWN | NY |
| 2005-02-10 | 631-456-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2005-02-10 | 631-456-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2005-02-10 | 631-481-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | ISLIP | NY |
| 2005-02-09 | 631-880-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | SELDEN | NY |
| 2005-02-08 | 631-292-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | KINGS PARK | NY |
| 2005-02-08 | 631-378-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | SHOREHAM | NY |
| 2005-02-08 | 631-440-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | FIREISLAND | NY |
| 2005-02-08 | 631-593-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | GREENPORT | NY |
| 2005-02-07 | 631-731-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | AMAGANSETT | NY |
| 2005-02-02 | 631-714-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | PATCHOGUE | 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.