NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

29 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 551
ONVOY, LLC - NJ 12
NEW CINGULAR WIRELESS PCS, LLC - DC 11
CSC WIRELESS, LLC 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 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
2020-02-21 551-293-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2020-02-21 551-293-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2020-02-21 551-293-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2020-02-21 551-293-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2020-02-21 551-293-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2020-02-21 551-293-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2020-02-20 551-554-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JERSEYCITY NJ
2020-02-20 551-554-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JERSEYCITY NJ
2020-02-20 551-554-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JERSEYCITY NJ
2020-02-20 551-554-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JERSEYCITY 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
2020-02-18 551-336-8XXX 8000–8999Assigned FRACTEL, LLC 965H HACKENSACK NJ
2020-02-18 551-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H HASBROKHTS NJ
2020-02-18 551-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H KEARNY NJ
2020-02-18 551-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H KEARNY NJ
2020-02-18 551-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H LEONIA NJ
2020-02-18 551-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H UNION CITY NJ
2020-02-18 551-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H UNION CITY NJ
2020-02-18 551-758-6XXX 6000–6999Assigned FRACTEL, LLC 965H JERSEYCITY NJ
2020-02-13 551-557-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 PARK RIDGE NJ
2020-02-06 551-305-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIDGEWOOD NJ
2020-02-06 551-305-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIDGEWOOD NJ
2020-02-05 551-302-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F HACKENSACK NJ
2020-02-05 551-554-3XXX 3000–3999Assigned ONVOY, LLC - NJ 637C JERSEYCITY NJ
2020-02-05 551-554-4XXX 4000–4999Assigned ONVOY, LLC - NJ 637C JERSEYCITY NJ
2020-02-05 551-554-5XXX 5000–5999Assigned ONVOY, LLC - NJ 637C JERSEYCITY NJ
2020-02-05 551-554-6XXX 6000–6999Assigned ONVOY, LLC - NJ 637C JERSEYCITY NJ
2020-01-30 551-304-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RUTHERFORD NJ
2020-01-16 551-230-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 ENGLEWOOD NJ
2020-01-16 551-292-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KEARNY NJ
2020-01-02 551-306-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 UNION CITY NJ
2019-12-18 551-552-2XXX 2000–2999Assigned ONVOY, LLC - NJ 637C CRAGMERE NJ
2019-12-18 551-552-3XXX 3000–3999Assigned ONVOY, LLC - NJ 637C CRAGMERE NJ
2019-12-18 551-552-4XXX 4000–4999Assigned ONVOY, LLC - NJ 637C CRAGMERE NJ
2019-12-18 551-552-5XXX 5000–5999Assigned ONVOY, LLC - NJ 637C CRAGMERE NJ
2019-12-18 551-552-6XXX 6000–6999Assigned ONVOY, LLC - NJ 637C CRAGMERE NJ
2019-12-12 551-314-4XXX 4000–4999Assigned CSC WIRELESS, LLC 425J CLIFFSIDE NJ
2019-12-12 551-314-5XXX 5000–5999Assigned CSC WIRELESS, LLC 425J CLIFFSIDE NJ
2019-12-12 551-314-8XXX 8000–8999Assigned CSC WIRELESS, LLC 425J CLIFFSIDE NJ
2019-12-12 551-314-9XXX 9000–9999Assigned CSC WIRELESS, LLC 425J CLIFFSIDE NJ
2019-12-05 551-304-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RUTHERFORD NJ
2019-12-05 551-304-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RUTHERFORD NJ
2019-11-27 551-261-9XXX 9000–9999Assigned TELNYX LLC 073H JERSEYCITY NJ
2019-11-25 551-304-0XXX 0000–0999Assigned TELNYX LLC 073H RUTHERFORD NJ
2019-11-19 551-308-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RAMSEY NJ
2019-10-21 551-261-4XXX 4000–4999Assigned ONVOY, LLC - NJ 637C JERSEYCITY NJ
2019-10-21 551-261-5XXX 5000–5999Assigned ONVOY, LLC - NJ 637C JERSEYCITY NJ
2019-10-21 551-261-7XXX 7000–7999Assigned ONVOY, LLC - NJ 637C JERSEYCITY 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.