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
2013-11-20 309-308-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 PEORIA IL
2013-11-20 309-308-3XXX 3000–3999Assigned ILLINOIS BELL TEL CO 9329 PEORIA IL
2013-11-20 309-308-4XXX 4000–4999Assigned ILLINOIS BELL TEL CO 9329 PEORIA IL
2013-11-20 309-308-5XXX 5000–5999Assigned ILLINOIS BELL TEL CO 9329 PEORIA IL
2013-11-20 309-308-6XXX 6000–6999Assigned ILLINOIS BELL TEL CO 9329 PEORIA IL
2013-11-20 309-308-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 PEORIA IL
2013-11-20 309-308-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 PEORIA IL
2013-11-20 309-308-9XXX 9000–9999Assigned ILLINOIS BELL TEL CO 9329 PEORIA IL
2013-11-07 309-981-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2013-10-28 309-407-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 PEORIA IL
2013-10-24 309-200-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BLOOMINGTN IL
2013-10-11 309-569-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUSHNELL IL
2013-10-02 309-415-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2013-10-02 309-415-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2013-09-09 309-665-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2013-09-06 309-326-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CANTON IL
2013-08-22 309-621-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 PEORIA IL
2013-07-31 309-585-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BLOOMINGTN IL
2013-06-17 309-429-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKISLAND IL
2013-06-17 309-429-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKISLAND IL
2013-06-10 309-307-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2013-05-29 309-323-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2013-05-16 309-481-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 WASHINGTON IL
2013-05-16 309-717-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 SUNNYLAND IL
2013-05-14 309-863-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2013-05-14 309-863-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2013-05-07 309-201-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PEKIN IL
2013-04-04 309-839-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PEORIA IL
2013-03-20 309-209-1XXX 1000–1999Assigned NUSO, LLC 551G MACOMB IL
2013-03-20 309-307-1XXX 1000–1999Assigned NUSO, LLC 551G BLOOMINGTN IL
2013-03-20 309-308-1XXX 1000–1999Assigned NUSO, LLC 551G PEORIA IL
2013-02-26 309-883-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 KEWANEE IL
2013-02-18 309-429-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ROCKISLAND IL
2013-02-14 309-808-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BLOOMINGTN IL
2013-02-05 309-200-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2012-12-03 309-304-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E EUREKA IL
2012-11-15 309-213-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2012-10-05 309-213-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2012-10-05 309-349-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEKIN IL
2012-10-03 309-201-0XXX 0000–0999Assigned UNITED STATES CELLULAR - IL 6265 PEKIN IL
2012-10-02 309-429-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKISLAND IL
2012-10-02 309-445-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2012-09-21 309-270-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHILLICOTH IL
2012-08-22 309-481-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WASHINGTON IL
2012-08-20 309-863-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J PEORIA IL
2012-08-20 309-863-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J PEORIA IL
2012-08-03 309-445-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2012-08-03 309-445-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2012-07-31 309-822-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SPRING BAY IL
2012-07-18 309-407-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 PEORIA 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.