NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

42 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 856
ONVOY, LLC - NJ 38
NEW CINGULAR WIRELESS PCS, LLC - DC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 1
BLOCK LINE SYSTEMS, LLC - NJ 1
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
2019-12-06 856-930-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAMDEN NJ
2019-12-06 856-930-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAMDEN NJ
2019-12-04 856-360-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MOORESTOWN NJ
2019-10-24 856-360-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MOORESTOWN NJ
2019-10-23 856-271-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2019-10-18 856-473-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2019-10-09 856-529-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F BRIDGETON NJ
2019-10-04 856-846-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D BERLIN NJ
2019-09-24 856-886-6XXX 6000–6999Assigned BLOCK LINE SYSTEMS, LLC - NJ 835E CAMDEN NJ
2019-09-11 856-886-5XXX 5000–5999Assigned BLOCK LINE SYSTEMS, LLC - NJ 835E CAMDEN NJ
2019-09-11 856-886-7XXX 7000–7999Assigned BLOCK LINE SYSTEMS, LLC - NJ 835E CAMDEN NJ
2019-09-10 856-796-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 HADDON HTS NJ
2019-08-28 856-204-4XXX 4000–4999Assigned METROPCS, INC. 5562 VINELAND NJ
2019-08-28 856-301-1XXX 1000–1999Assigned METROPCS, INC. 5562 VINELAND NJ
2019-08-28 856-401-4XXX 4000–4999Assigned METROPCS, INC. 5562 BLACKWOOD NJ
2019-08-28 856-401-5XXX 5000–5999Assigned METROPCS, INC. 5562 BLACKWOOD NJ
2019-08-23 856-543-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J RIVERTON NJ
2019-08-01 856-631-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2019-08-01 856-672-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2019-07-19 856-420-3XXX 3000–3999Assigned ONVOY, LLC - NJ 637C WOODBURY NJ
2019-07-19 856-420-4XXX 4000–4999Assigned ONVOY, LLC - NJ 637C WOODBURY NJ
2019-07-16 856-245-0XXX 0000–0999Assigned TELNYX LLC 073H BLACKWOOD NJ
2019-07-02 856-259-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F WILLIAMSTN NJ
2019-06-24 856-403-0XXX 0000–0999Assigned CSC WIRELESS, LLC 425J CAMDEN NJ
2019-06-24 856-403-1XXX 1000–1999Assigned CSC WIRELESS, LLC 425J CAMDEN NJ
2019-06-21 856-444-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 MOORESTOWN NJ
2019-06-10 856-874-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 HADDONFLD NJ
2019-06-07 856-508-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PITMAN NJ
2019-06-07 856-573-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2019-06-05 856-817-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MARLTON NJ
2019-06-05 856-824-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J RIVERSIDE NJ
2019-05-24 856-259-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NJ 118F WILLIAMSTN NJ
2019-05-22 856-766-2XXX 2000–2999Assigned CORETEL NEW JERSEY, INC. - NJ 482F MULLICA HL NJ
2019-05-22 856-766-4XXX 4000–4999Assigned CORETEL NEW JERSEY, INC. - NJ 482F MULLICA HL NJ
2019-05-22 856-766-6XXX 6000–6999Assigned CORETEL NEW JERSEY, INC. - NJ 482F MULLICA HL NJ
2019-05-21 856-473-6XXX 6000–6999Assigned CORETEL NEW JERSEY, INC. - NJ 482F HADDON HTS NJ
2019-05-21 856-637-6XXX 6000–6999Assigned CORETEL NEW JERSEY, INC. - NJ 482F BLACKWOOD NJ
2019-05-21 856-739-9XXX 9000–9999Assigned CORETEL NEW JERSEY, INC. - NJ 482F HADDON HTS NJ
2019-05-16 856-226-5XXX 5000–5999Assigned CORETEL NEW JERSEY, INC. - NJ 482F GLASSBORO NJ
2019-05-16 856-244-2XXX 2000–2999Assigned CORETEL NEW JERSEY, INC. - NJ 482F GLASSBORO NJ
2019-05-16 856-244-5XXX 5000–5999Assigned CORETEL NEW JERSEY, INC. - NJ 482F GLASSBORO NJ
2019-05-16 856-245-3XXX 3000–3999Assigned CORETEL NEW JERSEY, INC. - NJ 482F BLACKWOOD NJ
2019-05-16 856-245-4XXX 4000–4999Assigned CORETEL NEW JERSEY, INC. - NJ 482F BLACKWOOD NJ
2019-05-16 856-248-4XXX 4000–4999Assigned CORETEL NEW JERSEY, INC. - NJ 482F LAUREL SPG NJ
2019-05-16 856-248-9XXX 9000–9999Assigned CORETEL NEW JERSEY, INC. - NJ 482F LAUREL SPG NJ
2019-05-16 856-255-3XXX 3000–3999Assigned CORETEL NEW JERSEY, INC. - NJ 482F RIVERSIDE NJ
2019-05-16 856-255-4XXX 4000–4999Assigned CORETEL NEW JERSEY, INC. - NJ 482F RIVERSIDE NJ
2019-05-16 856-255-6XXX 6000–6999Assigned CORETEL NEW JERSEY, INC. - NJ 482F RIVERSIDE NJ
2019-05-16 856-267-7XXX 7000–7999Assigned CORETEL NEW JERSEY, INC. - NJ 482F MARLTON NJ
2019-05-16 856-267-8XXX 8000–8999Assigned CORETEL NEW JERSEY, INC. - NJ 482F MARLTON 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.