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
2018-12-12 551-295-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2018-12-07 551-295-5XXX 5000–5999Assigned METROPCS, INC. 5562 HACKENSACK NJ
2018-12-06 551-284-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 RIDGEWOOD NJ
2018-12-06 551-399-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C BAYONNE NJ
2018-12-06 551-399-2XXX 2000–2999Assigned ONVOY, LLC - NJ 637C BAYONNE NJ
2018-12-05 551-272-3XXX 3000–3999Assigned ONVOY, LLC - NJ 637C LEONIA NJ
2018-12-05 551-295-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C HACKENSACK NJ
2018-12-05 551-295-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C HACKENSACK NJ
2018-12-05 551-295-7XXX 7000–7999Assigned ONVOY, LLC - NJ 637C HACKENSACK NJ
2018-12-05 551-295-8XXX 8000–8999Assigned ONVOY, LLC - NJ 637C HACKENSACK NJ
2018-12-05 551-301-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C RUTHERFORD NJ
2018-12-05 551-301-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C RUTHERFORD NJ
2018-12-05 551-301-7XXX 7000–7999Assigned ONVOY, LLC - NJ 637C RUTHERFORD NJ
2018-12-05 551-301-8XXX 8000–8999Assigned ONVOY, LLC - NJ 637C RUTHERFORD NJ
2018-12-05 551-722-5XXX 5000–5999Assigned ONVOY, LLC - NJ 637C HASBROKHTS NJ
2018-12-05 551-722-6XXX 6000–6999Assigned ONVOY, LLC - NJ 637C HASBROKHTS NJ
2018-12-05 551-722-7XXX 7000–7999Assigned ONVOY, LLC - NJ 637C HASBROKHTS NJ
2018-12-03 551-234-7XXX 7000–7999Assigned METROPCS, INC. 5562 CLIFFSIDE NJ
2018-11-27 551-295-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 HACKENSACK NJ
2018-11-27 551-301-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 RUTHERFORD NJ
2018-11-20 551-239-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 CLIFFSIDE NJ
2018-11-20 551-241-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-11-20 551-241-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-11-09 551-286-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 HACKENSACK NJ
2018-11-09 551-286-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 HACKENSACK NJ
2018-11-08 551-293-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2018-11-08 551-293-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HACKENSACK NJ
2018-11-07 551-300-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 UNION CITY 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
2018-10-26 551-291-0XXX 0000–0999Assigned METROPCS, INC. 5562 RAMSEY NJ
2018-10-26 551-291-9XXX 9000–9999Assigned METROPCS, INC. 5562 RAMSEY NJ
2018-10-25 551-319-2XXX 2000–2999Assigned CSC VOICE, LLC 612K WYCKOFF NJ
2018-10-19 551-285-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J RUTHERFORD NJ
2018-10-18 551-399-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-10-18 551-399-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 BAYONNE NJ
2018-09-21 551-399-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F BAYONNE NJ
2018-09-20 551-285-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F RUTHERFORD NJ
2018-09-20 551-722-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F HASBROKHTS NJ
2018-09-19 551-280-2XXX 2000–2999Assigned METROPCS, INC. 5562 JERSEYCITY NJ
2018-09-19 551-280-3XXX 3000–3999Assigned METROPCS, INC. 5562 JERSEYCITY NJ
2018-09-19 551-280-4XXX 4000–4999Assigned METROPCS, INC. 5562 JERSEYCITY NJ
2018-09-18 551-230-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F ENGLEWOOD NJ
2018-09-18 551-230-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F ENGLEWOOD NJ
2018-09-18 551-284-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F RIDGEWOOD NJ
2018-09-18 551-284-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F RIDGEWOOD NJ
2018-09-18 551-284-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F RIDGEWOOD 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.