NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 551
PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 76
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
2025-08-15 551-390-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F PARK RIDGE NJ
2024-01-25 551-383-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F ORADELL NJ
2023-11-21 551-383-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F ORADELL NJ
2023-09-29 551-588-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RAMSEY NJ
2023-08-24 551-727-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F BAYONNE NJ
2023-07-25 551-374-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F DUMONT NJ
2023-06-27 551-588-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RAMSEY NJ
2023-04-26 551-362-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F JERSEYCITY NJ
2023-04-26 551-367-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F FAIR LAWN NJ
2023-03-01 551-755-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F CLOSTER NJ
2023-03-01 551-866-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F CLIFFSIDE NJ
2023-02-03 551-369-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F TEANECK NJ
2023-02-03 551-529-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F UNION CITY NJ
2023-02-03 551-955-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F WYCKOFF NJ
2022-11-22 551-362-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F JERSEYCITY NJ
2022-11-22 551-733-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RIDGEWOOD NJ
2022-11-22 551-751-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F WESTWOOD NJ
2022-07-25 551-449-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F HACKENSACK NJ
2022-05-24 551-899-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F HASBROKHTS NJ
2022-03-02 551-688-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F LEONIA NJ
2022-02-02 551-330-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F CLIFFSIDE NJ
2021-09-13 551-322-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F TEANECK NJ
2021-06-17 551-317-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F DUMONT NJ
2021-01-28 551-651-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F OAKLAND NJ
2020-09-30 551-430-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F JERSEYCITY NJ
2020-05-28 551-292-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F KEARNY NJ
2020-05-28 551-304-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RUTHERFORD NJ
2020-05-28 551-306-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F UNION CITY NJ
2020-04-29 551-282-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F WESTWOOD NJ
2020-04-29 551-292-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F KEARNY NJ
2020-03-30 551-278-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F ORADELL NJ
2020-02-19 551-319-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F WYCKOFF NJ
2020-02-19 551-554-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F JERSEYCITY NJ
2020-02-19 551-557-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F PARK RIDGE NJ
2020-02-05 551-302-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F HACKENSACK NJ
2020-01-30 551-304-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RUTHERFORD NJ
2019-11-19 551-308-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RAMSEY NJ
2019-08-16 551-400-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F CRAGMERE NJ
2019-05-30 551-212-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F TEANECK NJ
2019-05-30 551-282-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F WESTWOOD NJ
2019-03-27 551-299-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F FAIR LAWN NJ
2019-02-08 551-292-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F KEARNY NJ
2019-02-08 551-300-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F UNION CITY NJ
2019-02-08 551-303-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F CLOSTER NJ
2018-11-06 551-280-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F JERSEYCITY NJ
2018-11-02 551-292-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F KEARNY NJ
2018-10-31 551-210-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F DUMONT NJ
2018-10-31 551-234-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F CLIFFSIDE NJ
2018-10-31 551-284-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RIDGEWOOD NJ
2018-09-21 551-399-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F BAYONNE NJ

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.