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
2006-05-16 618-694-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2006-05-16 618-740-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SALEM IL
2006-05-16 618-918-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CENTRALIA IL
2006-05-15 618-387-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARMI IL
2006-05-15 618-615-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHESTER IL
2006-05-11 618-541-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2006-05-11 618-541-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2006-05-11 618-541-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2006-05-03 618-928-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRDS IL
2006-04-18 618-317-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPARTA IL
2006-04-18 618-318-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PINCKNEYVL IL
2006-04-18 618-384-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARMI IL
2006-04-18 618-615-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHESTER IL
2006-04-04 618-301-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2006-04-04 618-301-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2006-04-04 618-709-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANITE CY IL
2006-03-28 618-505-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 TROY IL
2006-03-23 618-726-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C O FALLON IL
2006-03-22 618-946-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JERSEYVL IL
2006-03-06 618-541-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-03-06 618-550-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-03-06 618-550-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-03-06 618-550-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-03-06 618-550-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-03-01 618-240-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT CARMEL IL
2006-03-01 618-316-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT VERNON IL
2006-03-01 618-638-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 METROPOLIS IL
2006-03-01 618-658-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 VIENNA IL
2006-03-01 618-694-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2006-02-16 618-416-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELLEVILLE IL
2006-02-13 618-301-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-02-01 618-216-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WOOD RIVER IL
2006-01-24 618-241-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MT VERNON IL
2006-01-19 618-541-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2006-01-19 618-541-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2006-01-19 618-541-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2006-01-19 618-541-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLLINSVL IL
2006-01-17 618-301-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2006-01-17 618-771-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 VIENNA IL
2006-01-17 618-861-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHESTER IL
2006-01-16 618-215-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K E ST LOUIS IL
2006-01-13 618-310-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J BELLEVILLE IL
2006-01-13 618-316-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT VERNON IL
2006-01-11 618-416-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C BELLEVILLE IL
2006-01-10 618-767-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BELLEVILLE IL
2005-12-27 618-694-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2005-12-05 618-317-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPARTA IL
2005-11-30 618-223-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2005-11-29 618-540-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2005-11-29 618-540-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 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.