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
2013-03-29 631-527-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E E HAMPTON NY
2013-03-29 631-527-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E E HAMPTON NY
2013-03-29 631-542-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E RONKONKOMA NY
2013-03-29 631-542-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E RONKONKOMA NY
2013-03-29 631-573-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E SAYVILLE NY
2013-03-29 631-573-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E SAYVILLE NY
2013-03-29 631-600-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E W COMMACK NY
2013-03-29 631-600-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E W COMMACK NY
2013-03-29 631-621-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E ST JAMES NY
2013-03-29 631-621-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E ST JAMES NY
2013-03-29 631-684-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E WESTHAMPTN NY
2013-03-29 631-684-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E WESTHAMPTN NY
2013-03-29 631-760-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E HUNTINGTON NY
2013-03-29 631-769-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E SHOREHAM NY
2013-03-29 631-808-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E SAG HARBOR NY
2013-03-29 631-824-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E HUNTINGTON NY
2013-03-29 631-837-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NORTHPORT NY
2013-03-29 631-837-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NORTHPORT NY
2013-03-29 631-849-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E SHOREHAM NY
2013-03-29 631-889-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E DEER PARK NY
2013-03-29 631-910-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E WADING RIV NY
2013-03-28 631-315-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E MATTITUCK NY
2013-03-28 631-318-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E AMAGANSETT NY
2013-03-28 631-318-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E AMAGANSETT NY
2013-03-28 631-354-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E MATTITUCK NY
2013-03-28 631-400-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E CTRMORICHS NY
2013-03-28 631-400-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E CTRMORICHS NY
2013-03-28 631-417-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E BABYLON NY
2013-03-28 631-417-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E BABYLON NY
2013-03-28 631-446-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E ISLIP NY
2013-03-28 631-446-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E ISLIP NY
2013-03-28 631-490-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E ATLANTIC NY
2013-03-28 631-490-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E ATLANTIC NY
2013-03-28 631-502-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E JAMESPORT NY
2013-03-28 631-502-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E JAMESPORT NY
2013-03-28 631-528-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E KINGS PARK NY
2013-03-28 631-544-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E KINGS PARK NY
2013-03-28 631-562-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E PATCHOGUE NY
2013-03-28 631-562-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E PATCHOGUE NY
2013-03-28 631-570-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E FIREISLAND NY
2013-03-28 631-570-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E FIREISLAND NY
2013-03-28 631-596-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E QUOGUE NY
2013-03-28 631-596-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E QUOGUE NY
2013-03-28 631-601-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E BRENTWOOD NY
2013-03-28 631-601-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E BRENTWOOD NY
2013-03-28 631-613-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E BRIDGEMPTN NY
2013-03-28 631-613-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E BRIDGEMPTN NY
2013-03-28 631-659-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E COLDSPGHBR NY
2013-03-28 631-659-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E COLDSPGHBR NY
2013-03-28 631-670-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E 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.