NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
CSC WIRELESS, LLC 3
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-05-25 631-866-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BELLPORT NY
2010-05-25 631-909-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CTRMORICHS NY
2010-05-24 631-317-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PATCHOGUE NY
2010-05-24 631-392-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E DEER PARK NY
2010-05-24 631-403-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PTJEFFERSN NY
2010-05-24 631-406-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SMITHTOWN NY
2010-05-24 631-505-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LINDENHST NY
2010-05-24 631-609-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BRENTWOOD NY
2010-05-24 631-657-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ATLANTIC NY
2010-05-24 631-892-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BAY SHORE NY
2010-05-19 631-356-6XXX 6000–6999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2010-05-19 631-639-0XXX 0000–0999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2010-05-19 631-639-1XXX 1000–1999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2010-05-19 631-639-4XXX 4000–4999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2010-05-19 631-639-5XXX 5000–5999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2010-05-19 631-639-6XXX 6000–6999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2010-05-19 631-639-7XXX 7000–7999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2010-05-14 631-204-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SOUTHAMPTN NY
2010-05-14 631-488-4XXX 4000–4999Assigned CSC VOICE, LLC 612K SOUTHAMPTN NY
2010-05-07 631-517-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BABYLON NY
2010-05-03 631-572-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BABYLON NY
2010-05-03 631-572-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BABYLON NY
2010-05-03 631-572-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BABYLON NY
2010-04-30 631-522-5XXX 5000–5999Assigned METROPCS, INC. 5562 DEER PARK NY
2010-04-30 631-522-6XXX 6000–6999Assigned METROPCS, INC. 5562 DEER PARK NY
2010-04-30 631-522-7XXX 7000–7999Assigned METROPCS, INC. 5562 DEER PARK NY
2010-04-30 631-522-8XXX 8000–8999Assigned METROPCS, INC. 5562 DEER PARK NY
2010-04-30 631-522-9XXX 9000–9999Assigned METROPCS, INC. 5562 DEER PARK NY
2010-04-22 631-609-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2010-04-22 631-972-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2010-04-15 631-317-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATCHOGUE NY
2010-04-15 631-609-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BRENTWOOD NY
2010-04-15 631-619-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RONKONKOMA NY
2010-04-13 631-887-2XXX 2000–2999Assigned TC SYSTEMS, INC. - NY 7140 HAMPTNBAYS NY
2010-04-08 631-377-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHAMPTN NY
2010-03-30 631-403-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PTJEFFERSN NY
2010-03-23 631-320-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SELDEN NY
2010-03-23 631-482-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BABYLON NY
2010-03-23 631-629-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HUNTINGTON NY
2010-03-09 631-392-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E DEER PARK NY
2010-03-09 631-479-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E HUNTINGTON NY
2010-03-09 631-606-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NORTHPORT NY
2010-03-04 631-863-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J SMITHTOWN NY
2010-02-25 631-505-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LINDENHST NY
2010-02-22 631-256-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SAYVILLE NY
2010-02-22 631-533-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CENTRAISLP NY
2010-02-22 631-565-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AMITYVILLE NY
2010-02-22 631-606-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NORTHPORT NY
2010-02-22 631-623-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E W COMMACK NY
2010-02-19 631-619-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RONKONKOMA NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.