NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2012-09-25 872-207-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2012-09-25 872-207-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2012-09-25 872-207-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN08 IL
2012-09-21 872-777-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN07 IL
2012-09-21 872-777-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN07 IL
2012-09-21 872-777-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN07 IL
2012-09-05 872-201-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICGOZN07 IL
2012-09-05 872-666-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICGOZN09 IL
2012-08-10 872-206-4XXX 4000–4999Assigned ACCESS ONE, INC. - IL 5447 CHICGOZN04 IL
2012-07-10 872-206-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN04 IL
2012-07-05 872-395-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHICGOZN10 IL
2012-06-21 872-206-1XXX 1000–1999Assigned ONVOY, LLC 224C CHICGOZN04 IL
2012-06-04 872-205-7XXX 7000–7999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L CHICGOZN06 IL
2012-06-04 872-206-7XXX 7000–7999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L CHICGOZN04 IL
2012-05-30 872-203-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J CHICGOZN02 IL
2012-05-17 872-203-8XXX 8000–8999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L CHICGOZN02 IL
2012-05-17 872-395-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN10 IL
2012-05-17 872-395-7XXX 7000–7999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L CHICGOZN10 IL
2012-05-17 872-666-7XXX 7000–7999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L CHICGOZN09 IL
2012-04-24 872-205-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2012-04-17 872-206-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CHICGOZN04 IL
2012-04-11 872-203-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2012-04-11 872-203-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2012-04-05 872-206-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN04 IL
2012-03-30 872-203-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2012-03-30 872-203-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2012-03-30 872-203-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2012-03-28 872-206-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CHICGOZN04 IL
2012-03-27 872-221-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN09 IL
2012-03-23 872-205-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2012-03-23 872-205-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2012-03-01 872-202-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2012-03-01 872-202-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2012-02-24 872-205-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2012-02-21 872-221-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN09 IL
2012-02-13 872-203-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2012-02-07 872-588-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2012-01-25 872-588-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2012-01-25 872-588-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2012-01-25 872-588-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN04 IL
2012-01-25 872-888-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2012-01-12 872-202-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2012-01-12 872-202-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2012-01-12 872-202-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2012-01-12 872-202-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2012-01-12 872-202-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2012-01-12 872-202-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2012-01-12 872-202-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2012-01-12 872-202-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN01 IL
2011-12-29 872-225-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN01 IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.