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 |
|---|---|---|---|---|---|---|---|
| 2014-06-12 | 631-888-6XXX | 6000–6999 | Assigned | ONVOY, LLC- NY | 384C | LINDENHST | NY |
| 2014-06-11 | 631-557-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | AMAGANSETT | NY |
| 2014-06-11 | 631-600-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | W COMMACK | NY |
| 2014-06-06 | 631-296-5XXX | 5000–5999 | Assigned | TC SYSTEMS, INC. - NY | 7140 | BRIDGEMPTN | NY |
| 2014-05-28 | 631-300-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-05-28 | 631-449-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-05-28 | 631-637-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-05-28 | 631-637-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-05-28 | 631-856-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | HAMPTNBAYS | NY |
| 2014-05-12 | 631-912-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | NORTHPORT | NY |
| 2014-05-08 | 631-450-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | LINDENHST | NY |
| 2014-05-01 | 631-500-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WATER MILL | NY |
| 2014-05-01 | 631-684-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WESTHAMPTN | NY |
| 2014-05-01 | 631-929-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WADING RIV | NY |
| 2014-04-29 | 631-637-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BRENTWOOD | NY |
| 2014-04-28 | 631-538-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2014-04-28 | 631-538-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2014-04-28 | 631-951-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2014-04-28 | 631-951-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2014-04-21 | 631-268-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SOUTHAMPTN | NY |
| 2014-04-21 | 631-307-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PATCHOGUE | NY |
| 2014-04-21 | 631-307-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PATCHOGUE | NY |
| 2014-04-21 | 631-923-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HUNTINGTON | NY |
| 2014-04-21 | 631-923-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HUNTINGTON | NY |
| 2014-04-09 | 631-408-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AMITYVILLE | NY |
| 2014-04-08 | 631-268-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SOUTHAMPTN | NY |
| 2014-04-08 | 631-296-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BRIDGEMPTN | NY |
| 2014-04-08 | 631-354-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MATTITUCK | NY |
| 2014-04-08 | 631-378-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SHOREHAM | NY |
| 2014-04-08 | 631-407-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SOUTHOLD | NY |
| 2014-04-08 | 631-430-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GREENPORT | NY |
| 2014-04-08 | 631-443-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EASTPORT | NY |
| 2014-04-08 | 631-483-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MONTAUK PT | NY |
| 2014-04-08 | 631-502-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | JAMESPORT | NY |
| 2014-04-08 | 631-515-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SHELTER IS | NY |
| 2014-04-08 | 631-529-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ORIENT | NY |
| 2014-04-08 | 631-596-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | QUOGUE | NY |
| 2014-04-08 | 631-658-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | E HAMPTON | NY |
| 2014-04-08 | 631-735-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PECONIC | NY |
| 2014-04-08 | 631-808-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SAG HARBOR | NY |
| 2014-04-08 | 631-856-3XXX | 3000–3999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HAMPTNBAYS | NY |
| 2014-04-03 | 631-250-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ST JAMES | NY |
| 2014-04-03 | 631-307-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PATCHOGUE | NY |
| 2014-04-03 | 631-318-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AMAGANSETT | NY |
| 2014-04-03 | 631-341-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | YAPHANK | NY |
| 2014-04-03 | 631-364-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | STONYBROOK | NY |
| 2014-04-03 | 631-400-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CTRMORICHS | NY |
| 2014-04-03 | 631-437-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FIREISLAND | NY |
| 2014-04-03 | 631-490-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ATLANTIC | NY |
| 2014-04-03 | 631-510-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MIDLAND | 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.