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 |
|---|---|---|---|---|---|---|---|
| 2016-08-31 | 631-228-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | SHOREHAM | NY |
| 2016-08-31 | 631-705-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ATLANTIC | NY |
| 2016-08-04 | 631-350-0XXX | 0000–0999 | Assigned | INTRADO COMMUNICATIONS, LLC | 831C | HUNTINGTON | NY |
| 2016-08-03 | 631-723-8XXX | 8000–8999 | Assigned | INTRADO COMMUNICATIONS, LLC | 831C | HAMPTNBAYS | NY |
| 2016-08-01 | 631-658-1XXX | 1000–1999 | Assigned | INTRADO COMMUNICATIONS, LLC | 831C | E HAMPTON | NY |
| 2016-07-29 | 631-202-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | RONKONKOMA | NY |
| 2016-07-29 | 631-202-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | RONKONKOMA | NY |
| 2016-07-29 | 631-202-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | RONKONKOMA | NY |
| 2016-07-29 | 631-202-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | RONKONKOMA | NY |
| 2016-07-29 | 631-202-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | RONKONKOMA | NY |
| 2016-07-29 | 631-290-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | BABYLON | NY |
| 2016-07-29 | 631-290-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | BABYLON | NY |
| 2016-07-29 | 631-290-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | BABYLON | NY |
| 2016-07-29 | 631-290-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | BABYLON | NY |
| 2016-07-29 | 631-526-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | BABYLON | NY |
| 2016-07-29 | 631-659-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | COLDSPGHBR | NY |
| 2016-07-29 | 631-659-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | COLDSPGHBR | NY |
| 2016-07-29 | 631-659-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | COLDSPGHBR | NY |
| 2016-07-29 | 631-763-0XXX | 0000–0999 | Assigned | HD CARRIER LLC | 321J | COLDSPGHBR | NY |
| 2016-07-15 | 631-304-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2016-07-13 | 631-307-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PATCHOGUE | NY |
| 2016-07-08 | 631-212-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | COMMACK | NY |
| 2016-06-30 | 631-448-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | YAPHANK | NY |
| 2016-06-30 | 631-997-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | SELDEN | NY |
| 2016-06-30 | 631-997-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | SELDEN | NY |
| 2016-06-22 | 631-256-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SAYVILLE | NY |
| 2016-06-22 | 631-490-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ATLANTIC | NY |
| 2016-06-20 | 631-377-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SOUTHAMPTN | NY |
| 2016-06-20 | 631-557-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | AMAGANSETT | NY |
| 2016-06-20 | 631-977-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PATCHOGUE | NY |
| 2016-06-17 | 631-652-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SMITHTOWN | NY |
| 2016-06-15 | 631-214-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | DEER PARK | NY |
| 2016-06-15 | 631-652-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | SMITHTOWN | NY |
| 2016-06-11 | 631-215-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | BRENTWOOD | NY |
| 2016-06-10 | 631-381-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | RIVERHEAD | NY |
| 2016-06-08 | 631-381-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | RIVERHEAD | NY |
| 2016-06-03 | 631-931-1XXX | 1000–1999 | Assigned | HD CARRIER LLC | 321J | E HAMPTON | NY |
| 2016-06-02 | 631-941-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | STONYBROOK | NY |
| 2016-05-27 | 631-212-2XXX | 2000–2999 | Assigned | ONVOY, LLC- NY | 384C | COMMACK | NY |
| 2016-05-27 | 631-212-3XXX | 3000–3999 | Assigned | ONVOY, LLC- NY | 384C | COMMACK | NY |
| 2016-05-27 | 631-642-6XXX | 6000–6999 | Assigned | ONVOY, LLC- NY | 384C | PTJEFFERSN | NY |
| 2016-05-27 | 631-651-0XXX | 0000–0999 | Assigned | ONVOY, LLC- NY | 384C | NORTHPORT | NY |
| 2016-05-27 | 631-651-3XXX | 3000–3999 | Assigned | ONVOY, LLC- NY | 384C | NORTHPORT | NY |
| 2016-05-27 | 631-706-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | STONYBROOK | NY |
| 2016-05-27 | 631-706-9XXX | 9000–9999 | Assigned | ONVOY, LLC- NY | 384C | STONYBROOK | NY |
| 2016-04-28 | 631-215-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2016-04-28 | 631-215-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2016-04-28 | 631-215-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2016-04-28 | 631-215-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2016-04-25 | 631-212-4XXX | 4000–4999 | Assigned | TELENGY L.L.C. - NY | 473G | COMMACK | 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.