NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 309
NEW CINGULAR WIRELESS PCS, LLC - IL 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
2026-09-14 309-666-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2026-08-12 309-400-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKISLAND IL
2026-07-23 309-985-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDUSTRY IL
2026-07-23 309-985-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDUSTRY IL
2026-07-23 309-986-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SMITHFIELD IL
2026-07-23 309-986-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SMITHFIELD IL
2026-06-24 309-991-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUMMUM IL
2026-06-24 309-991-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUMMUM IL
2026-06-24 309-991-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUMMUM IL
2026-06-24 309-991-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUMMUM IL
2026-06-24 309-991-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUMMUM IL
2026-06-24 309-991-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUMMUM IL
2026-06-24 309-991-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUMMUM IL
2026-06-24 309-991-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUMMUM IL
2026-06-18 309-961-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMINGTN IL
2026-06-05 309-330-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA IL
2026-06-05 309-330-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA IL
2026-06-05 309-330-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA IL
2026-06-05 309-330-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA IL
2026-06-05 309-330-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA IL
2026-06-05 309-330-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA IL
2026-06-05 309-330-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA IL
2026-06-05 309-330-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA IL
2026-06-05 309-947-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2026-06-05 309-947-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2026-06-05 309-947-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2026-06-05 309-947-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2026-06-05 309-947-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2026-06-05 309-947-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2026-06-05 309-947-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2026-06-05 309-947-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2026-06-05 309-947-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2026-06-04 309-979-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2026-04-27 309-570-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2026-04-01 309-400-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKISLAND IL
2026-01-15 309-984-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMINGTN IL
2025-12-08 309-979-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2025-12-08 309-979-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2025-11-03 309-380-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKISLAND IL
2025-10-20 309-906-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WOODHULL IL
2025-10-01 309-718-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMINGTN IL
2025-09-02 309-810-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2025-09-02 309-810-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2025-06-09 309-390-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2025-06-09 309-390-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2025-05-02 309-473-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HEYWORTH IL
2025-05-02 309-997-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOOD HOPE IL
2025-04-17 309-390-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2025-02-27 309-390-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2025-01-15 309-380-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKISLAND 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.