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
2016-11-09 309-510-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-11-09 309-510-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-11-09 309-510-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-11-09 309-510-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-11-09 309-510-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-11-09 309-510-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-11-09 309-510-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-11-09 309-510-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-11-09 309-510-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-11-03 309-206-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKISLAND IL
2016-11-02 309-513-9XXX 9000–9999Assigned CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 1183 ALEDO IL
2016-10-14 309-326-4XXX 4000–4999Assigned ONVOY, LLC 224C CANTON IL
2016-10-12 309-422-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-10-12 309-422-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-10-12 309-422-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-10-12 309-423-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-10-10 309-386-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2016-10-10 309-386-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2016-10-10 309-386-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2016-10-10 309-386-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2016-10-10 309-386-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2016-10-10 309-386-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2016-10-03 309-374-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 KEITHSBURG IL
2016-10-03 309-464-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NOHENDERSN IL
2016-10-03 309-537-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ELIZA IL
2016-10-03 309-584-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 JOY IL
2016-10-03 309-586-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SEATON IL
2016-10-03 309-587-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NEW BOSTON IL
2016-10-03 309-729-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LITTLEYORK IL
2016-10-03 309-872-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RIO IL
2016-09-28 309-684-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2016-09-28 309-808-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2016-09-23 309-423-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2016-09-23 309-423-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2016-09-20 309-543-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HAVANA IL
2016-09-20 309-865-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EASTMOLINE IL
2016-09-14 309-419-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-09-14 309-419-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-09-14 309-419-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2016-09-12 309-430-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROCKISLAND IL
2016-09-12 309-602-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHERRARD IL
2016-09-09 309-439-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2016-09-09 309-439-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2016-09-09 309-439-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2016-09-09 309-439-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2016-09-08 309-551-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MATHERVL IL
2016-09-08 309-559-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 OQUAWKA IL
2016-09-08 309-600-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PREEMPTION IL
2016-09-08 309-623-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOLINE IL
2016-09-08 309-626-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ORION 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.