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
2019-03-18 551-297-0XXX 0000–0999Assigned CORETEL NEW JERSEY, INC. - NJ 482F BAYONNE NJ
2019-03-18 551-299-6XXX 6000–6999Assigned CORETEL NEW JERSEY, INC. - NJ 482F FAIR LAWN NJ
2019-03-06 551-297-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2019-02-25 551-300-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NJ 4948 UNION CITY NJ
2019-02-21 551-239-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F CLIFFSIDE NJ
2019-02-21 551-239-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F CLIFFSIDE NJ
2019-02-21 551-239-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F CLIFFSIDE NJ
2019-02-21 551-239-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F CLIFFSIDE NJ
2019-02-18 551-340-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F HACKENSACK NJ
2019-02-18 551-340-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F HACKENSACK NJ
2019-02-18 551-340-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F HACKENSACK NJ
2019-02-18 551-340-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F HACKENSACK NJ
2019-02-18 551-340-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F HACKENSACK NJ
2019-02-18 551-340-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F HACKENSACK NJ
2019-02-18 551-340-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F HACKENSACK NJ
2019-02-18 551-449-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F HACKENSACK 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
2019-01-30 551-557-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - NJ 4948 PARK RIDGE NJ
2019-01-29 551-303-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 CLOSTER NJ
2019-01-29 551-340-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 HACKENSACK NJ
2019-01-29 551-370-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 RIDGEWOOD NJ
2019-01-24 551-260-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 JERSEYCITY NJ
2019-01-24 551-260-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 JERSEYCITY NJ
2019-01-24 551-270-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 RAMSEY NJ
2019-01-24 551-300-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 UNION CITY NJ
2019-01-24 551-301-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 RUTHERFORD NJ
2019-01-23 551-284-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIDGEWOOD NJ
2019-01-16 551-299-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 FAIR LAWN NJ
2019-01-14 551-277-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 JERSEYCITY NJ
2019-01-11 551-722-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 HASBROKHTS NJ
2019-01-07 551-301-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RUTHERFORD NJ
2019-01-07 551-301-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RUTHERFORD NJ
2018-12-31 551-261-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 JERSEYCITY NJ
2018-12-31 551-261-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 JERSEYCITY NJ
2018-12-21 551-297-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-12-21 551-297-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-12-20 551-297-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-12-19 551-300-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 UNION CITY NJ
2018-12-17 551-292-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 KEARNY NJ
2018-12-17 551-399-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-12-17 551-399-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-12-17 551-399-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-12-13 551-296-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 OAKLAND NJ
2018-12-13 551-308-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 RAMSEY NJ
2018-12-12 551-251-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2018-12-12 551-295-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2018-12-12 551-295-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2018-12-12 551-295-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK 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.