NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 872
NEW CINGULAR WIRELESS PCS, LLC - IL 8
8X8, INC. 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
2026-03-02 872-799-1XXX 1000–1999Assigned ONVOY, LLC 224C CHICGOZN10 IL
2026-03-02 872-822-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN07 IL
2026-02-02 872-366-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2026-02-02 872-469-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2026-02-02 872-900-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2026-01-27 872-261-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN10 IL
2026-01-27 872-269-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN08 IL
2026-01-27 872-270-1XXX 1000–1999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2026-01-27 872-376-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2026-01-27 872-376-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2026-01-27 872-384-5XXX 5000–5999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2026-01-27 872-384-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2026-01-27 872-390-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2026-01-27 872-390-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2026-01-27 872-390-9XXX 9000–9999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2026-01-27 872-391-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2026-01-27 872-392-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN08 IL
2026-01-15 872-289-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN01 IL
2026-01-14 872-900-1XXX 1000–1999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2026-01-09 872-390-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN06 IL
2026-01-09 872-390-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN06 IL
2026-01-09 872-390-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN06 IL
2026-01-09 872-390-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN06 IL
2026-01-08 872-587-8XXX 8000–8999Assigned AHOI LLC 883K CHICGOZN02 IL
2025-12-22 872-900-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2025-12-22 872-900-9XXX 9000–9999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2025-12-18 872-388-1XXX 1000–1999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2025-12-18 872-390-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2025-12-12 872-277-9XXX 9000–9999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2025-12-12 872-799-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN10 IL
2025-12-09 872-387-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHICGOZN09 IL
2025-12-05 872-388-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN03 IL
2025-12-05 872-388-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN03 IL
2025-11-07 872-389-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN04 IL
2025-11-07 872-389-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN04 IL
2025-11-07 872-389-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN04 IL
2025-11-04 872-799-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN10 IL
2025-10-27 872-387-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHICGOZN09 IL
2025-10-27 872-387-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHICGOZN09 IL
2025-10-15 872-389-2XXX 2000–2999Assigned ONVOY, LLC 224C CHICGOZN04 IL
2025-10-15 872-389-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN04 IL
2025-10-02 872-389-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN04 IL
2025-10-02 872-389-1XXX 1000–1999Assigned ONVOY, LLC 224C CHICGOZN04 IL
2025-09-26 872-383-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN05 IL
2025-09-26 872-383-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN05 IL
2025-09-26 872-386-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN10 IL
2025-09-26 872-386-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN10 IL
2025-09-26 872-386-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN10 IL
2025-09-26 872-386-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN10 IL
2025-09-26 872-386-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN10 IL

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.