NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 618
NEW CINGULAR WIRELESS PCS, LLC - IL 2
EXIANT COMMUNICATIONS LLC 2
AHOI LLC 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
2013-10-01 618-954-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2013-09-23 618-802-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2013-09-23 618-802-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2013-09-17 618-501-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2013-09-17 618-671-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2013-09-17 618-671-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2013-08-28 618-202-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ANNA IL
2013-08-22 618-501-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANITE CY IL
2013-08-21 618-692-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EDWARDSVL IL
2013-08-12 618-964-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MARION IL
2013-08-12 618-964-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MARION IL
2013-08-02 618-748-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MOUND CITY IL
2013-08-01 618-726-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K O FALLON IL
2013-07-30 618-964-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2013-07-25 618-309-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 METROPOLIS IL
2013-07-09 618-671-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELLEVILLE IL
2013-07-09 618-671-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2013-07-09 618-671-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2013-07-09 618-671-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2013-07-02 618-364-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MARION IL
2013-06-24 618-251-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WOOD RIVER IL
2013-06-14 618-690-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 GREENVILLE IL
2013-06-10 618-501-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2013-06-10 618-501-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2013-05-30 618-767-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BELLEVILLE IL
2013-05-17 618-607-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J O FALLON IL
2013-05-16 618-808-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 LEBANON IL
2013-05-06 618-857-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K E ST LOUIS IL
2013-04-17 618-546-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ROBINSON IL
2013-04-17 618-708-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 SPARTA IL
2013-04-16 618-387-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CARMI IL
2013-04-16 618-572-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 FLORA IL
2013-04-16 618-715-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 HARRISBURG IL
2013-04-11 618-699-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VANDALIA IL
2013-04-10 618-224-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E TRENTON IL
2013-04-10 618-224-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E TRENTON IL
2013-04-04 618-216-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E WOOD RIVER IL
2013-04-04 618-216-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E WOOD RIVER IL
2013-04-04 618-227-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BECKEMEYER IL
2013-04-04 618-227-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BECKEMEYER IL
2013-04-04 618-230-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E EDGEMONT IL
2013-04-04 618-230-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E EDGEMONT IL
2013-04-04 618-314-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E NASHVILLE IL
2013-04-04 618-352-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CENTRALIA IL
2013-04-04 618-352-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CENTRALIA IL
2013-04-04 618-372-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BRIGHTON IL
2013-04-04 618-372-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BRIGHTON IL
2013-04-04 618-374-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ALTON IL
2013-04-04 618-391-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GLENCARBON IL
2013-04-04 618-391-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GLENCARBON 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.