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
2026-07-21 872-878-2XXX 2000–2999Assigned ONVOY, LLC 224C CHICGOZN07 IL
2026-07-21 872-878-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICGOZN07 IL
2026-07-21 872-878-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN07 IL
2026-07-21 872-900-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2026-07-21 872-900-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2026-06-15 872-291-2XXX 2000–2999Assigned METROPCS, INC. 5562 CHICGOZN08 IL
2026-06-15 872-391-3XXX 3000–3999Assigned METROPCS, INC. 5562 CHICGOZN06 IL
2026-06-09 872-900-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN05 IL
2026-06-09 872-900-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN05 IL
2026-06-09 872-900-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN05 IL
2026-06-05 872-393-3XXX 3000–3999Assigned NUSO, LLC 732J CHICGOZN01 IL
2026-06-04 872-393-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN01 IL
2026-05-18 872-316-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN07 IL
2026-05-18 872-343-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN07 IL
2026-05-18 872-343-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN07 IL
2026-05-18 872-343-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN07 IL
2026-05-18 872-391-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2026-05-14 872-388-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN03 IL
2026-05-14 872-388-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN03 IL
2026-05-08 872-389-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN04 IL
2026-05-08 872-389-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN04 IL
2026-05-08 872-393-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN01 IL
2026-04-17 872-251-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHICGOZN08 IL
2026-04-08 872-393-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2026-04-08 872-393-1XXX 1000–1999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2026-04-08 872-393-2XXX 2000–2999Assigned ONVOY, LLC 224C CHICGOZN01 IL
2026-04-01 872-878-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN07 IL
2026-04-01 872-878-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN07 IL
2026-04-01 872-878-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN07 IL
2026-04-01 872-878-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN07 IL
2026-04-01 872-878-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN07 IL
2026-03-31 872-500-5XXX 5000–5999Assigned EXIANT COMMUNICATIONS LLC 114J CHICGOZN04 IL
2026-03-27 872-274-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN04 IL
2026-03-27 872-367-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN04 IL
2026-03-27 872-391-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2026-03-27 872-391-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2026-03-27 872-814-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN04 IL
2026-03-24 872-500-0XXX 0000–0999Assigned AHOI LLC 883K CHICGOZN04 IL
2026-03-23 872-822-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN07 IL
2026-03-02 872-387-9XXX 9000–9999Assigned ONVOY, LLC 224C CHICGOZN09 IL
2026-03-02 872-388-2XXX 2000–2999Assigned ONVOY, LLC 224C CHICGOZN03 IL
2026-03-02 872-391-1XXX 1000–1999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2026-03-02 872-392-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN08 IL
2026-03-02 872-392-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN08 IL
2026-03-02 872-392-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN08 IL
2026-03-02 872-392-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN08 IL
2026-03-02 872-392-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN08 IL
2026-03-02 872-392-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN08 IL
2026-03-02 872-392-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHICGOZN08 IL
2026-03-02 872-568-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN07 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.