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
2017-12-04 309-271-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2017-11-16 309-317-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKISLAND IL
2017-11-15 309-207-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ILLINOISCY IL
2017-11-15 309-207-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ILLINOISCY IL
2017-10-31 309-592-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2017-10-31 309-592-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2017-10-30 309-280-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-10-25 309-271-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-10-25 309-271-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-10-25 309-271-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-10-25 309-271-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-10-25 309-271-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-10-17 309-690-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-10-17 309-999-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-10-06 309-271-0XXX 0000–0999Assigned ONVOY, LLC 224C PEORIA IL
2017-10-06 309-271-1XXX 1000–1999Assigned ONVOY, LLC 224C PEORIA IL
2017-10-06 309-271-2XXX 2000–2999Assigned ONVOY, LLC 224C PEORIA IL
2017-10-05 309-536-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MONMOUTH IL
2017-10-05 309-592-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKISLAND IL
2017-09-26 309-271-6XXX 6000–6999Assigned ONVOY, LLC 224C PEORIA IL
2017-09-15 309-245-5XXX 5000–5999Assigned CENTURY ENTERPRISES, INC. - IL 455H FARMINGTON IL
2017-09-15 309-446-4XXX 4000–4999Assigned CENTURY ENTERPRISES, INC. - IL 455H BRIMFIELD IL
2017-09-15 309-760-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MONMOUTH IL
2017-09-06 309-921-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ROANOKE IL
2017-09-05 309-204-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SPRING BAY IL
2017-09-05 309-204-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SPRING BAY IL
2017-09-01 309-240-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DUNLAP IL
2017-09-01 309-304-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E EUREKA IL
2017-09-01 309-580-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MOSSVILLE IL
2017-09-01 309-741-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELMWOOD IL
2017-09-01 309-929-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E TREMONT IL
2017-08-22 309-201-6XXX 6000–6999Assigned UNITED STATES CELLULAR - IL 6265 PEKIN IL
2017-08-18 309-435-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CANTON IL
2017-08-18 309-592-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKISLAND IL
2017-08-18 309-592-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKISLAND IL
2017-07-20 309-419-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-419-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-419-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-423-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-423-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-424-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-424-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-424-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-424-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-567-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-567-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-567-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-567-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-567-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2017-07-20 309-567-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 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.