NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2014-01-14 631-652-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 SMITHTOWN NY
2013-12-30 631-432-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2013-12-25 631-562-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E PATCHOGUE NY
2013-12-16 631-863-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SMITHTOWN NY
2013-12-05 631-307-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATCHOGUE NY
2013-11-27 631-992-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 DEER PARK NY
2013-11-22 631-620-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BABYLON NY
2013-11-22 631-973-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J KINGS PARK NY
2013-11-15 631-432-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRENTWOOD NY
2013-11-15 631-450-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LINDENHST NY
2013-11-15 631-518-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BAY SHORE NY
2013-11-15 631-930-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CENTRAISLP NY
2013-11-13 631-542-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RONKONKOMA NY
2013-11-11 631-257-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SMITHTOWN NY
2013-11-11 631-552-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-11-11 631-552-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-11-11 631-947-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BELLPORT NY
2013-11-07 631-449-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BRENTWOOD NY
2013-11-05 631-257-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J SMITHTOWN NY
2013-11-05 631-944-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON NY
2013-10-22 631-618-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E YAPHANK NY
2013-10-11 631-417-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BABYLON NY
2013-10-09 631-437-6XXX 6000–6999Assigned TC SYSTEMS, INC. - NY 7140 FIREISLAND NY
2013-09-25 631-740-2XXX 2000–2999Assigned METROPCS, INC. 5562 RIVERHEAD NY
2013-09-25 631-770-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 FARMINGDL NY
2013-09-19 631-542-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RONKONKOMA NY
2013-09-19 631-992-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 DEER PARK NY
2013-09-11 631-306-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 DEER PARK NY
2013-09-11 631-507-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-09-11 631-507-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-09-11 631-507-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-09-11 631-507-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-09-11 631-552-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-09-11 631-552-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-08-29 631-285-3XXX 3000–3999Assigned CSC VOICE, LLC 612K RONKONKOMA NY
2013-08-29 631-449-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2013-08-29 631-449-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2013-08-29 631-449-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2013-08-29 631-449-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2013-08-27 631-337-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SAYVILLE NY
2013-08-27 631-538-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SELDEN NY
2013-08-27 631-552-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-08-27 631-552-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-08-27 631-552-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-08-27 631-885-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2013-08-20 631-507-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-08-20 631-507-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-08-20 631-507-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-08-20 631-507-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2013-08-20 631-571-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J ORIENT 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.