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
2011-09-13 309-532-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMINGTN IL
2011-09-07 309-517-6XXX 6000–6999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F MOLINE IL
2011-08-31 309-200-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2011-08-31 309-297-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GALESBURG IL
2011-08-26 309-340-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2011-08-18 309-532-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2011-08-17 309-807-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BLOOMINGTN IL
2011-08-15 309-429-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKISLAND IL
2011-08-10 309-228-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C FARMINGTON IL
2011-08-10 309-518-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C LEWISTOWN IL
2011-08-10 309-884-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C HANNA CITY IL
2011-08-10 309-889-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SPRING BAY IL
2011-08-08 309-732-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKISLAND IL
2011-08-08 309-966-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2011-07-25 309-428-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2011-07-21 309-206-1XXX 1000–1999Assigned ILLINOIS BELL TEL CO 9329 ROCKISLAND IL
2011-07-21 309-206-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 ROCKISLAND IL
2011-07-18 309-981-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2011-07-12 309-808-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 BLOOMINGTN IL
2011-07-06 309-585-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2011-07-06 309-585-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2011-06-16 309-306-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PEORIA IL
2011-06-16 309-306-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PEORIA IL
2011-06-16 309-306-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PEORIA IL
2011-06-16 309-306-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PEORIA IL
2011-06-16 309-306-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PEORIA IL
2011-06-16 309-306-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PEORIA IL
2011-06-16 309-306-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PEORIA IL
2011-06-16 309-306-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PEORIA IL
2011-06-15 309-226-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CANTON IL
2011-06-15 309-281-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EASTMOLINE IL
2011-06-15 309-340-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PEORIA IL
2011-06-07 309-213-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2011-06-07 309-232-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2011-06-03 309-434-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2011-05-31 309-433-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2011-05-31 309-433-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2011-05-31 309-433-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2011-05-31 309-433-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2011-05-23 309-213-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2011-05-06 309-340-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-05-06 309-340-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2011-05-06 309-660-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BLOOMINGTN IL
2011-04-27 309-300-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SOUTHPEKIN IL
2011-04-21 309-262-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2011-04-21 309-644-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKISLAND IL
2011-04-19 309-644-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2011-04-13 309-336-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BLOOMINGTN IL
2011-04-12 309-210-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEORIA IL
2011-04-12 309-621-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 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.