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
2008-02-06 856-723-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 WILLIAMSTN NJ
2008-02-06 856-723-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 WILLIAMSTN NJ
2008-01-30 856-336-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 BERLIN NJ
2008-01-23 856-536-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 CAMDEN NJ
2008-01-22 856-286-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J PITMAN NJ
2008-01-22 856-857-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2008-01-22 856-857-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2008-01-22 856-857-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2008-01-21 856-306-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 BERLIN NJ
2008-01-18 856-723-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 WILLIAMSTN NJ
2008-01-17 856-457-9XXX 9000–9999Assigned METROPCS, INC. 5562 VINELAND NJ
2008-01-17 856-776-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MILLVILLE NJ
2008-01-15 856-322-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 BERLIN NJ
2008-01-11 856-376-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 PENNSGROVE NJ
2008-01-11 856-542-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 SWEDESBORO NJ
2008-01-08 856-361-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 CAMDEN NJ
2008-01-08 856-361-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 CAMDEN NJ
2008-01-08 856-361-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 CAMDEN NJ
2008-01-08 856-938-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 HADDONFLD NJ
2008-01-08 856-938-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 HADDONFLD NJ
2008-01-08 856-938-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 HADDONFLD NJ
2007-12-18 856-219-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BEAVER BRK NJ
2007-12-18 856-533-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 MOORESTOWN NJ
2007-12-13 856-283-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 CAMDEN NJ
2007-12-13 856-405-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 VINELAND NJ
2007-12-05 856-470-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2007-11-28 856-874-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 HADDONFLD NJ
2007-11-20 856-266-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 MOORESTOWN NJ
2007-11-20 856-673-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2007-11-20 856-673-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2007-11-20 856-673-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2007-11-20 856-857-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2007-11-08 856-628-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 WOODBURY NJ
2007-11-05 856-255-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 RIVERSIDE NJ
2007-11-05 856-469-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 SALEM NJ
2007-11-02 856-821-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J LAUREL SPG NJ
2007-11-01 856-334-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MARLTON NJ
2007-10-26 856-282-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 LAUREL SPG NJ
2007-10-23 856-203-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CAMDEN NJ
2007-10-19 856-396-6XXX 6000–6999Assigned BLOCK LINE SYSTEMS, LLC - NJ 835E MARLTON NJ
2007-10-19 856-406-4XXX 4000–4999Assigned BLOCK LINE SYSTEMS, LLC - NJ 835E MERCHANTVL NJ
2007-10-19 856-840-4XXX 4000–4999Assigned BLOCK LINE SYSTEMS, LLC - NJ 835E MOORESTOWN NJ
2007-10-19 856-857-6XXX 6000–6999Assigned BLOCK LINE SYSTEMS, LLC - NJ 835E HADDONFLD NJ
2007-10-16 856-283-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 CAMDEN NJ
2007-10-15 856-602-4XXX 4000–4999Assigned BLOCK LINE SYSTEMS, LLC - NJ 835E CAMDEN NJ
2007-10-11 856-409-9XXX 9000–9999Assigned VERIZON NEW JERSEY, INC. 9206 CAMDEN NJ
2007-10-09 856-685-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 HADDONFLD NJ
2007-10-09 856-685-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 HADDONFLD NJ
2007-10-09 856-685-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 HADDONFLD NJ
2007-10-04 856-472-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 MULLICA HL 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.