NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 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
VERSATEL LLC 2
EXIANT COMMUNICATIONS LLC 2
BANDWIDTH.COM CLEC, LLC - IL 2
AHOI LLC 2
OPENTACT 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
2012-07-13 309-831-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMINGTN IL
2012-07-03 309-740-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2012-07-03 309-740-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2012-07-03 309-740-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2012-06-26 309-533-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMINGTN IL
2012-06-21 309-606-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WYOMING IL
2012-06-21 309-839-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2012-05-30 309-807-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BLOOMINGTN IL
2012-05-18 309-973-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GALESBURG IL
2012-05-14 309-214-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2012-05-14 309-214-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2012-05-14 309-214-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2012-05-14 309-323-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2012-05-01 309-349-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PEKIN IL
2012-04-24 309-713-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2012-03-22 309-306-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2012-03-22 309-306-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2012-03-07 309-568-3XXX 3000–3999Assigned ONVOY, LLC 224C ANDOVER IL
2012-03-06 309-203-1XXX 1000–1999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F EASTMOLINE IL
2012-02-22 309-934-5XXX 5000–5999Assigned HENRY COUNTY TEL. CO. 1029 ANNAWAN IL
2012-02-08 309-886-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WASHINGTON IL
2012-02-07 309-973-2XXX 2000–2999Assigned BRIGHTSPEED OF ILLINOIS, LLC 1057 GALESBURG IL
2012-01-27 309-329-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ASTORIA IL
2012-01-27 309-517-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MOLINE IL
2012-01-20 309-323-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2012-01-12 309-206-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2012-01-12 309-206-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2012-01-12 309-206-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2012-01-12 309-318-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MACOMB IL
2012-01-11 309-425-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C FIATT IL
2012-01-09 309-532-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMINGTN IL
2012-01-05 309-206-4XXX 4000–4999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F ROCKISLAND IL
2011-12-15 309-807-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2011-12-12 309-326-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 CANTON IL
2011-11-28 309-323-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J PEORIA IL
2011-11-07 309-203-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EASTMOLINE IL
2011-11-03 309-323-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-11-03 309-323-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-11-03 309-323-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-11-03 309-323-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-10-11 309-569-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUSHNELL IL
2011-10-10 309-839-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-10-10 309-839-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-10-10 309-839-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-09-28 309-679-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2011-09-20 309-340-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-09-20 309-340-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-09-20 309-340-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-09-20 309-340-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-09-15 309-281-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 EASTMOLINE 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.