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
2012-06-25 618-416-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELLEVILLE IL
2012-06-21 618-899-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MT VERNON IL
2012-06-21 618-899-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MT VERNON IL
2012-06-21 618-899-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MT VERNON IL
2012-06-21 618-899-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MT VERNON IL
2012-06-18 618-200-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 BENTON IL
2012-06-18 618-623-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2012-06-18 618-623-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2012-06-18 618-932-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WFRANKFORT IL
2012-05-24 618-225-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2012-05-24 618-606-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2012-05-24 618-606-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2012-05-24 618-803-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2012-05-24 618-803-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2012-05-24 618-803-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2012-05-24 618-876-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2012-05-17 618-823-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2012-05-10 618-660-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2012-05-01 618-622-7XXX 7000–7999Assigned MCC NETWORK SERVICES, LLC 075A O FALLON IL
2012-04-24 618-413-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MARINE IL
2012-04-24 618-413-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MARINE IL
2012-04-11 618-887-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MARINE IL
2012-04-11 618-887-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MARINE IL
2012-04-11 618-887-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MARINE IL
2012-03-12 618-704-6XXX 6000–6999Assigned METROPCS, INC. 5562 VANDALIA IL
2012-03-05 618-516-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRFIELD IL
2012-03-02 618-726-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J O FALLON IL
2012-02-28 618-305-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARBONDALE IL
2012-02-28 618-899-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MT VERNON IL
2012-02-24 618-823-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2012-02-21 618-623-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2012-02-15 618-295-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MARISSA IL
2012-01-31 618-855-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COLLINSVL IL
2012-01-27 618-707-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LAWRENCEVL IL
2012-01-24 618-269-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHAWNEETN IL
2012-01-20 618-783-7XXX 7000–7999Assigned ONVOY, LLC 224C NEWTON IL
2012-01-11 618-578-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2012-01-11 618-790-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DU QUOIN IL
2012-01-04 618-472-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MT VERNON IL
2011-12-05 618-494-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 JERSEYVL IL
2011-12-01 618-391-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J GLENCARBON IL
2011-11-18 618-202-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANNA IL
2011-11-09 618-504-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E WATERLOO IL
2011-10-06 618-205-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GLENCARBON IL
2011-10-04 618-589-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C O FALLON IL
2011-10-03 618-294-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 HARRISBURG IL
2011-09-19 618-224-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TRENTON IL
2011-09-19 618-391-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C GLENCARBON IL
2011-09-19 618-475-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C NEW ATHENS IL
2011-09-19 618-489-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C EDGEMONT 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.