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 |
|---|---|---|---|---|---|---|---|
| 2014-04-03 | 631-519-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | E FIRE IS | NY |
| 2014-04-03 | 631-526-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BABYLON | NY |
| 2014-04-03 | 631-600-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | W COMMACK | NY |
| 2014-04-03 | 631-633-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BELLPORT | NY |
| 2014-04-03 | 631-670-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | COMMACK | NY |
| 2014-04-03 | 631-824-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | HUNTINGTON | NY |
| 2014-04-03 | 631-840-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ISLIP | NY |
| 2014-04-03 | 631-868-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BAYPORT | NY |
| 2014-04-03 | 631-925-3XXX | 3000–3999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NORTHPORT | NY |
| 2014-04-03 | 631-973-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | KINGS PARK | NY |
| 2014-04-02 | 631-461-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RIVERHEAD | NY |
| 2014-04-02 | 631-538-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SELDEN | NY |
| 2014-04-02 | 631-573-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SAYVILLE | NY |
| 2014-04-02 | 631-743-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PTJEFFERSN | NY |
| 2014-03-27 | 631-658-0XXX | 0000–0999 | Assigned | INTRADO COMMUNICATIONS, LLC | 831C | E HAMPTON | NY |
| 2014-03-27 | 631-685-7XXX | 7000–7999 | Assigned | INTRADO COMMUNICATIONS, LLC | 831C | HAMPTNBAYS | NY |
| 2014-03-27 | 631-812-8XXX | 8000–8999 | Assigned | INTRADO COMMUNICATIONS, LLC | 831C | HUNTINGTON | NY |
| 2014-03-06 | 631-449-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BRENTWOOD | NY |
| 2014-03-05 | 631-633-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | BELLPORT | NY |
| 2014-02-27 | 631-449-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2014-02-26 | 631-296-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | BRIDGEMPTN | NY |
| 2014-02-26 | 631-659-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | COLDSPGHBR | NY |
| 2014-02-21 | 631-437-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | FIREISLAND | NY |
| 2014-02-21 | 631-481-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ISLIP | NY |
| 2014-02-21 | 631-538-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SELDEN | NY |
| 2014-02-21 | 631-591-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | RIVERHEAD | NY |
| 2014-02-21 | 631-861-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | FARMINGDL | NY |
| 2014-02-21 | 631-861-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | FARMINGDL | NY |
| 2014-02-21 | 631-861-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | FARMINGDL | NY |
| 2014-02-21 | 631-910-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | WADING RIV | NY |
| 2014-02-19 | 631-296-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | BRIDGEMPTN | NY |
| 2014-01-30 | 631-538-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2014-01-30 | 631-538-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SELDEN | NY |
| 2014-01-30 | 631-923-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HUNTINGTON | NY |
| 2014-01-27 | 631-498-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | COLDSPGHBR | NY |
| 2014-01-21 | 631-526-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BABYLON | NY |
| 2014-01-21 | 631-953-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | RIVERHEAD | NY |
| 2014-01-21 | 631-953-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | RIVERHEAD | NY |
| 2014-01-21 | 631-953-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | RIVERHEAD | NY |
| 2014-01-16 | 631-268-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SOUTHAMPTN | NY |
| 2014-01-16 | 631-743-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | PTJEFFERSN | NY |
| 2014-01-15 | 631-417-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BABYLON | NY |
| 2014-01-15 | 631-432-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-01-15 | 631-432-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-01-15 | 631-432-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-01-15 | 631-432-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-01-15 | 631-432-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-01-15 | 631-432-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-01-15 | 631-432-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2014-01-15 | 631-526-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BABYLON | 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.