NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2004-04-07 618-295-5XXX 5000–5999Assigned MCC NETWORK SERVICES, LLC 9915 MARISSA IL
2004-04-07 618-317-9XXX 9000–9999Assigned MCC NETWORK SERVICES, LLC 9915 SPARTA IL
2004-04-07 618-497-7XXX 7000–7999Assigned MCC NETWORK SERVICES, LLC 9915 PERCY IL
2004-04-07 618-505-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 TROY IL
2004-04-07 618-568-8XXX 8000–8999Assigned MCC NETWORK SERVICES, LLC 9915 ELKVILLE IL
2004-04-07 618-758-7XXX 7000–7999Assigned MCC NETWORK SERVICES, LLC 9915 COULTERVL IL
2004-04-07 618-826-6XXX 6000–6999Assigned MCC NETWORK SERVICES, LLC 9915 CHESTER IL
2004-04-07 618-853-3XXX 3000–3999Assigned MCC NETWORK SERVICES, LLC 9915 EVANSVILLE IL
2004-04-07 618-859-7XXX 7000–7999Assigned MCC NETWORK SERVICES, LLC 9915 ELLISGROVE IL
2004-04-07 618-965-5XXX 5000–5999Assigned MCC NETWORK SERVICES, LLC 9915 STEELEVL IL
2004-03-29 618-684-9XXX 9000–9999Assigned MCC NETWORK SERVICES, LLC 9915 MURPHYSBO IL
2004-03-23 618-294-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARRISBURG IL
2004-03-23 618-508-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLORA IL
2004-03-23 618-516-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRFIELD IL
2004-03-23 618-663-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTON IL
2004-03-16 618-698-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2004-02-17 618-579-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MARION IL
2004-01-07 618-614-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANNA IL
2004-01-07 618-926-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARRISBURG IL
2004-01-07 618-927-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTON IL
2003-12-29 618-223-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2003-12-15 618-676-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLAY CITY IL
2003-12-15 618-676-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLAY CITY IL
2003-12-15 618-928-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRDS IL
2003-12-15 618-928-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRDS IL
2003-12-01 618-926-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARRISBURG IL
2003-11-25 618-301-5XXX 5000–5999Assigned AT&T - LOCAL 7421 COLLINSVL IL
2003-11-11 618-223-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2003-10-29 618-316-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT VERNON IL
2003-10-22 618-516-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRFIELD IL
2003-10-22 618-638-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 METROPOLIS IL
2003-10-22 618-638-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 METROPOLIS IL
2003-10-22 618-927-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTON IL
2003-10-21 618-694-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARION IL
2003-10-14 618-309-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 METROPOLIS IL
2003-09-26 618-316-5XXX 5000–5999Assigned AT&T - LOCAL 7421 MT VERNON IL
2003-09-10 618-318-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PINCKNEYVL IL
2003-09-10 618-318-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PINCKNEYVL IL
2003-09-10 618-318-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PINCKNEYVL IL
2003-09-10 618-340-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RED BUD IL
2003-09-10 618-340-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RED BUD IL
2003-09-08 618-269-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHAWNEETN IL
2003-09-08 618-297-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELDORADO IL
2003-09-08 618-317-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPARTA IL
2003-09-08 618-375-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GRAYVILLE IL
2003-09-08 618-445-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALBION IL
2003-08-29 618-317-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPARTA IL
2003-08-29 618-317-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPARTA IL
2003-08-29 618-384-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARMI IL
2003-08-29 618-384-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARMI IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.