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 |
|---|---|---|---|---|---|---|---|
| 2004-11-18 | 631-742-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HUNTINGTON | NY |
| 2004-11-18 | 631-742-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HUNTINGTON | NY |
| 2004-11-18 | 631-778-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | CENTRAISLP | NY |
| 2004-11-12 | 631-546-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | HUNTINGTON | NY |
| 2004-11-11 | 631-343-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | COMMACK | NY |
| 2004-11-11 | 631-824-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | HUNTINGTON | NY |
| 2004-11-09 | 631-418-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | HUNTINGTON | NY |
| 2004-11-09 | 631-681-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2004-11-09 | 631-776-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BELLPORT | NY |
| 2004-11-09 | 631-880-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2004-11-09 | 631-880-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2004-11-05 | 631-274-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | DEER PARK | NY |
| 2004-11-05 | 631-813-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-11-05 | 631-813-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-11-05 | 631-813-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-11-05 | 631-885-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-11-05 | 631-885-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-11-05 | 631-885-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-11-05 | 631-885-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BRENTWOOD | NY |
| 2004-10-30 | 631-240-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | SMITHTOWN | NY |
| 2004-10-29 | 631-259-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | SOUTHAMPTN | NY |
| 2004-10-28 | 631-885-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | BRENTWOOD | NY |
| 2004-10-27 | 631-813-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | BRENTWOOD | NY |
| 2004-10-27 | 631-813-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | BRENTWOOD | NY |
| 2004-10-25 | 631-813-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | BRENTWOOD | NY |
| 2004-10-25 | 631-813-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2004-10-25 | 631-813-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2004-10-25 | 631-813-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2004-10-19 | 631-714-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | PATCHOGUE | NY |
| 2004-10-19 | 631-714-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | PATCHOGUE | NY |
| 2004-10-18 | 631-813-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BRENTWOOD | NY |
| 2004-10-18 | 631-873-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-10-14 | 631-506-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | RIVERHEAD | NY |
| 2004-10-14 | 631-506-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | RIVERHEAD | NY |
| 2004-10-13 | 631-771-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | E HAMPTON | NY |
| 2004-10-13 | 631-865-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | DEER PARK | NY |
| 2004-10-12 | 631-905-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | RIVERHEAD | NY |
| 2004-10-11 | 631-357-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-10-11 | 631-357-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-10-11 | 631-357-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2004-10-01 | 631-251-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | SAG HARBOR | NY |
| 2004-10-01 | 631-337-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | SAYVILLE | NY |
| 2004-10-01 | 631-815-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | FARMINGDL | NY |
| 2004-09-21 | 631-386-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | FARMINGDL | NY |
| 2004-09-21 | 631-386-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | FARMINGDL | NY |
| 2004-09-21 | 631-386-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | FARMINGDL | NY |
| 2004-09-21 | 631-386-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | FARMINGDL | NY |
| 2004-09-21 | 631-386-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | FARMINGDL | NY |
| 2004-09-17 | 631-387-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | COMMACK | NY |
| 2004-09-16 | 631-953-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | RIVERHEAD | 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.