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
2013-01-04 618-589-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 O FALLON IL
2012-12-17 618-964-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2012-12-14 618-293-3XXX 3000–3999Assigned MCC NETWORK SERVICES, LLC 075A EDGEMONT IL
2012-12-14 618-307-8XXX 8000–8999Assigned MCC NETWORK SERVICES, LLC 075A EDWARDSVL IL
2012-12-14 618-391-3XXX 3000–3999Assigned MCC NETWORK SERVICES, LLC 075A GLENCARBON IL
2012-12-14 618-475-1XXX 1000–1999Assigned MCC NETWORK SERVICES, LLC 075A NEW ATHENS IL
2012-12-14 618-501-5XXX 5000–5999Assigned MCC NETWORK SERVICES, LLC 075A GRANITE CY IL
2012-12-14 618-505-8XXX 8000–8999Assigned MCC NETWORK SERVICES, LLC 075A TROY IL
2012-12-14 618-539-1XXX 1000–1999Assigned MCC NETWORK SERVICES, LLC 075A FREEBURG IL
2012-12-14 618-732-7XXX 7000–7999Assigned MCC NETWORK SERVICES, LLC 075A BLUFORD IL
2012-12-14 618-755-5XXX 5000–5999Assigned MCC NETWORK SERVICES, LLC 075A HARMONY IL
2012-12-14 618-822-8XXX 8000–8999Assigned MCC NETWORK SERVICES, LLC 075A KELL IL
2012-12-14 618-857-1XXX 1000–1999Assigned MCC NETWORK SERVICES, LLC 075A E ST LOUIS IL
2012-12-11 618-740-7XXX 7000–7999Assigned MCC NETWORK SERVICES, LLC 075A SALEM IL
2012-12-06 618-855-7XXX 7000–7999Assigned MCC NETWORK SERVICES, LLC 075A COLLINSVL IL
2012-12-05 618-722-2XXX 2000–2999Assigned MCC NETWORK SERVICES, LLC 075A BELLEVILLE IL
2012-11-30 618-816-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MT VERNON IL
2012-11-26 618-601-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DUPO IL
2012-11-19 618-504-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WATERLOO IL
2012-11-19 618-719-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COLUMBIA IL
2012-11-15 618-352-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CENTRALIA IL
2012-11-07 618-477-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 COLLINSVL IL
2012-11-07 618-690-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GREENVILLE IL
2012-11-01 618-501-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J GRANITE CY IL
2012-10-31 618-221-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BREESE IL
2012-10-25 618-494-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JERSEYVL IL
2012-10-16 618-319-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CARBONDALE IL
2012-10-16 618-715-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HARRISBURG IL
2012-10-04 618-224-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E TRENTON IL
2012-10-04 618-228-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E AVISTON IL
2012-10-04 618-266-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E DIX IL
2012-10-04 618-323-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E IUKA IL
2012-10-04 618-360-3XXX 3000–3999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HARMONY IL
2012-10-04 618-366-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E KASKASKIA IL
2012-10-04 618-523-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GERMANTOWN IL
2012-10-04 618-547-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E KINMUNDY IL
2012-10-04 618-661-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MCCLURE IL
2012-10-04 618-732-2XXX 2000–2999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BLUFORD IL
2012-10-04 618-822-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E KELL IL
2012-10-04 618-844-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E CARLYLE IL
2012-09-26 618-570-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2012-09-13 618-509-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BELLEVILLE IL
2012-09-10 618-899-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J MT VERNON IL
2012-09-06 618-578-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J COLLINSVL IL
2012-08-30 618-269-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHAWNEETN IL
2012-08-30 618-472-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MT VERNON IL
2012-08-22 618-882-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E HIGHLAND IL
2012-08-14 618-302-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALBION IL
2012-07-19 618-255-8XXX 8000–8999Assigned AT&T - LOCAL 7421 WOOD RIVER IL
2012-07-13 618-803-5XXX 5000–5999Assigned 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.