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
2014-07-10 309-873-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GULFPORT IL
2014-07-08 309-305-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MINIERAGTN IL
2014-07-08 309-377-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CROPSEY IL
2014-07-08 309-468-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LE ROY IL
2014-07-08 309-487-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DOWNS IL
2014-07-08 309-488-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FARMERCITY IL
2014-07-08 309-490-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEXINGTON IL
2014-07-08 309-498-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HEYWORTH IL
2014-07-08 309-504-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DANVERS IL
2014-07-08 309-722-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BELLFLOWER IL
2014-07-08 309-723-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLFAX IL
2014-07-08 309-724-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ELLSWORTH IL
2014-07-08 309-727-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ARROWSMITH IL
2014-06-25 309-209-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MACOMB IL
2014-06-25 309-237-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BUSHNELL IL
2014-06-25 309-289-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 KNOXVILLE IL
2014-06-25 309-329-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ASTORIA IL
2014-06-25 309-376-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARLOCK IL
2014-06-25 309-599-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LONDON ML IL
2014-06-25 309-775-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PRAIRIE CY IL
2014-06-25 309-784-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VERMONT IL
2014-06-25 309-801-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 STRONGHST IL
2014-06-25 309-832-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ABINGDON IL
2014-06-19 309-563-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CAMERON IL
2014-06-18 309-200-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2014-06-13 309-585-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BLOOMINGTN IL
2014-05-14 309-955-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WATAGA IL
2014-05-14 309-975-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AVON IL
2014-05-07 309-808-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2014-04-22 309-889-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SPRING BAY IL
2014-04-14 309-270-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHILLICOTH IL
2014-04-08 309-839-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2014-04-08 309-839-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2014-04-02 309-201-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PEKIN IL
2014-03-24 309-214-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2014-03-24 309-214-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2014-03-17 309-536-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONMOUTH IL
2014-03-07 309-315-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GALESBURG IL
2014-02-28 309-445-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2014-02-28 309-445-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2014-02-27 309-205-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLOOMINGTN IL
2014-02-11 309-421-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MACOMB IL
2014-02-06 309-866-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 MORTON IL
2014-01-31 309-429-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKISLAND IL
2014-01-14 309-201-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEKIN IL
2014-01-13 309-714-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 GENESEO IL
2013-12-20 309-213-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2013-12-20 309-213-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2013-12-12 309-357-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CANTON IL
2013-11-20 309-308-0XXX 0000–0999Assigned ILLINOIS BELL TEL CO 9329 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.