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
2023-10-04 856-735-9XXX 9000–9999Assigned ONVOY, LLC - NJ 637C RIVERTON NJ
2023-09-27 856-215-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 WOODBURY NJ
2023-09-27 856-525-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MILLVILLE NJ
2023-09-27 856-592-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 BRIDGETON NJ
2023-09-27 856-633-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2023-09-21 856-215-4XXX 4000–4999Assigned ONVOY, LLC - NJ 637C WOODBURY NJ
2023-09-21 856-215-5XXX 5000–5999Assigned ONVOY, LLC - NJ 637C WOODBURY NJ
2023-09-21 856-286-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C PITMAN NJ
2023-09-21 856-388-5XXX 5000–5999Assigned ONVOY, LLC - NJ 637C WILLIAMSTN NJ
2023-09-21 856-465-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C COLLINGSWD NJ
2023-09-21 856-526-5XXX 5000–5999Assigned ONVOY, LLC - NJ 637C GLASSBORO NJ
2023-09-21 856-538-7XXX 7000–7999Assigned ONVOY, LLC - NJ 637C BRIDGETON NJ
2023-09-21 856-569-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C VINELAND NJ
2023-09-21 856-569-8XXX 8000–8999Assigned ONVOY, LLC - NJ 637C VINELAND NJ
2023-09-21 856-588-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C CAMDEN NJ
2023-09-21 856-591-2XXX 2000–2999Assigned ONVOY, LLC - NJ 637C MOORESTOWN NJ
2023-09-21 856-618-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C BLACKWOOD NJ
2023-09-21 856-618-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C BLACKWOOD NJ
2023-09-21 856-699-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C WILLIAMSTN NJ
2023-09-21 856-741-9XXX 9000–9999Assigned ONVOY, LLC - NJ 637C LAUREL SPG NJ
2023-09-21 856-792-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C MERCHANTVL NJ
2023-09-21 856-821-9XXX 9000–9999Assigned ONVOY, LLC - NJ 637C LAUREL SPG NJ
2023-09-21 856-838-5XXX 5000–5999Assigned ONVOY, LLC - NJ 637C PITMAN NJ
2023-09-21 856-880-1XXX 1000–1999Assigned ONVOY, LLC - NJ 637C PAULSBORO NJ
2023-09-21 856-934-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C BRIDGETON NJ
2023-09-21 856-934-7XXX 7000–7999Assigned ONVOY, LLC - NJ 637C BRIDGETON NJ
2023-09-21 856-955-2XXX 2000–2999Assigned ONVOY, LLC - NJ 637C CAMDEN NJ
2023-09-21 856-961-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C BEAVER BRK NJ
2023-09-18 856-585-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-585-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-585-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-585-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-585-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-585-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-585-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-585-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-585-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-585-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-18 856-587-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2023-09-15 856-610-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAMDEN NJ
2023-09-15 856-610-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAMDEN 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.