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
2011-02-21 618-696-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-02-21 618-816-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MT VERNON IL
2011-02-21 618-816-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MT VERNON IL
2011-02-18 618-300-0XXX 0000–0999Assigned ONVOY, LLC 224C CARBONDALE IL
2011-02-15 618-799-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-02-15 618-799-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-02-15 618-799-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-02-15 618-799-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-02-15 618-799-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-02-10 618-305-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARBONDALE IL
2011-02-04 618-629-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 EWING IL
2011-01-31 618-691-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-01-31 618-691-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-01-31 618-691-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-01-31 618-691-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-01-31 618-691-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-01-14 618-204-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT VERNON IL
2011-01-14 618-253-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 HARRISBURG IL
2011-01-14 618-309-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 METROPOLIS IL
2011-01-14 618-751-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2011-01-10 618-200-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BENTON IL
2011-01-10 618-200-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BENTON IL
2011-01-10 618-200-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BENTON IL
2011-01-10 618-660-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-01-10 618-660-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-01-10 618-660-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2011-01-10 618-660-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2010-11-22 618-623-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2010-11-22 618-623-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2010-11-12 618-513-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTON IL
2010-11-10 618-823-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2010-11-03 618-436-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J CENTRALIA IL
2010-10-21 618-544-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROBINSON IL
2010-10-11 618-319-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARBONDALE IL
2010-09-29 618-240-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT CARMEL IL
2010-09-29 618-305-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARBONDALE IL
2010-09-27 618-213-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EDGEMONT IL
2010-09-15 618-857-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J E ST LOUIS IL
2010-09-13 618-722-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BELLEVILLE IL
2010-08-26 618-704-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VANDALIA IL
2010-08-26 618-751-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2010-08-13 618-823-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2010-08-03 618-504-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WATERLOO IL
2010-08-03 618-504-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WATERLOO IL
2010-07-30 618-494-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 JERSEYVL IL
2010-07-30 618-882-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 HIGHLAND IL
2010-07-30 618-964-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MARION IL
2010-07-26 618-477-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2010-07-26 618-477-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2010-07-19 618-790-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DU QUOIN 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.