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
2008-07-23 618-381-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2008-07-23 618-381-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2008-07-17 618-213-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 EDGEMONT IL
2008-07-17 618-659-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 EDWARDSVL IL
2008-07-16 618-663-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BENTON IL
2008-07-15 618-579-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2008-07-15 618-731-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT VERNON IL
2008-06-27 618-551-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-27 618-551-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-27 618-551-2XXX 2000–2999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-27 618-551-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-27 618-551-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-27 618-551-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-27 618-551-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-27 618-551-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-27 618-551-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-27 618-551-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COLLINSVL IL
2008-06-24 618-614-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ANNA IL
2008-06-17 618-512-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 GRANITE CY IL
2008-06-17 618-878-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MT CARMEL IL
2008-06-11 618-340-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RED BUD IL
2008-06-11 618-508-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLORA IL
2008-06-11 618-751-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARION IL
2008-06-06 618-302-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALBION IL
2008-06-03 618-310-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2008-06-02 618-579-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2008-05-27 618-365-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-05-27 618-365-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-05-14 618-855-0XXX 0000–0999Assigned ONVOY, LLC 224C COLLINSVL IL
2008-05-08 618-448-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MASCOUTAH IL
2008-05-06 618-391-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GLENCARBON IL
2008-05-01 618-731-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MT VERNON IL
2008-04-18 618-479-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SALEM IL
2008-04-16 618-669-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 POCAHONTAS IL
2008-04-09 618-772-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-04-09 618-772-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-04-09 618-772-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-04-09 618-772-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-04-09 618-772-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-04-09 618-799-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-04-09 618-799-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-04-09 618-799-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-04-09 618-808-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LEBANON IL
2008-04-08 618-709-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2008-03-28 618-512-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANITE CY IL
2008-03-27 618-589-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K O FALLON IL
2008-03-27 618-759-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 VIENNA IL
2008-03-13 618-416-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELLEVILLE IL
2008-03-11 618-250-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2008-03-11 618-250-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL 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.