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
2007-09-14 618-309-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 METROPOLIS IL
2007-09-14 618-731-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT VERNON IL
2007-09-11 618-571-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PINCKNEYVL IL
2007-08-30 618-309-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 METROPOLIS IL
2007-08-30 618-509-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2007-08-30 618-509-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2007-08-23 618-918-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CENTRALIA IL
2007-08-14 618-882-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HIGHLAND IL
2007-08-08 618-240-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT CARMEL IL
2007-08-08 618-364-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2007-08-08 618-383-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARMI IL
2007-08-02 618-663-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BENTON IL
2007-07-24 618-315-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MT VERNON IL
2007-07-13 618-954-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-07-13 618-954-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-07-13 618-954-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-06-29 618-946-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JERSEYVL IL
2007-06-22 618-433-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ALTON IL
2007-06-18 618-364-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2007-06-12 618-310-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 BELLEVILLE IL
2007-06-12 618-381-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 COLLINSVL IL
2007-06-12 618-659-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 EDWARDSVL IL
2007-06-11 618-416-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELLEVILLE IL
2007-06-07 618-731-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MT VERNON IL
2007-06-07 618-762-9XXX 9000–9999Assigned MCC NETWORK SERVICES, LLC 075A WALTONVL IL
2007-06-07 618-899-9XXX 9000–9999Assigned MCC NETWORK SERVICES, LLC 075A MT VERNON IL
2007-06-06 618-477-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-06-06 618-477-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-06-06 618-477-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-06-06 618-477-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-06-06 618-477-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-06-06 618-540-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-06-06 618-540-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-06-06 618-550-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-05-25 618-570-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-05-25 618-570-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-05-25 618-570-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-05-25 618-570-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2007-05-10 618-243-8XXX 8000–8999Assigned MCC NETWORK SERVICES, LLC 075A OKAWVILLE IL
2007-05-10 618-247-7XXX 7000–7999Assigned MCC NETWORK SERVICES, LLC 075A SANDOVAL IL
2007-05-10 618-266-0XXX 0000–0999Assigned MCC NETWORK SERVICES, LLC 075A DIX IL
2007-05-10 618-448-9XXX 9000–9999Assigned MCC NETWORK SERVICES, LLC 075A MASCOUTAH IL
2007-05-10 618-464-9XXX 9000–9999Assigned MCC NETWORK SERVICES, LLC 075A NASHVILLE IL
2007-05-10 618-594-9XXX 9000–9999Assigned MCC NETWORK SERVICES, LLC 075A CARLYLE IL
2007-05-10 618-808-9XXX 9000–9999Assigned MCC NETWORK SERVICES, LLC 075A LEBANON IL
2007-05-10 618-918-7XXX 7000–7999Assigned MCC NETWORK SERVICES, LLC 075A CENTRALIA IL
2007-04-25 618-207-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2007-04-19 618-245-5XXX 5000–5999Assigned WABASH INDEPENDENT NETWORKS, INC DBA WABASH COMM 772H FARINA IL
2007-04-19 618-247-2XXX 2000–2999Assigned WABASH INDEPENDENT NETWORKS, INC DBA WABASH COMM 772H SANDOVAL IL
2007-04-19 618-249-2XXX 2000–2999Assigned WABASH INDEPENDENT NETWORKS, INC DBA WABASH COMM 772H IRVINGTON 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.