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
2006-11-16 618-204-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MT VERNON IL
2006-10-26 618-206-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 O FALLON IL
2006-10-26 618-207-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2006-10-26 618-215-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 E ST LOUIS IL
2006-10-26 618-219-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 GRANITE CY IL
2006-10-26 618-435-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BENTON IL
2006-10-26 618-560-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-10-26 618-560-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-10-26 618-560-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-10-23 618-709-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2006-10-11 618-315-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MT VERNON IL
2006-10-06 618-857-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C E ST LOUIS IL
2006-10-02 618-579-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MARION IL
2006-09-26 618-240-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MT CARMEL IL
2006-09-26 618-421-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROBINSON IL
2006-09-26 618-560-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-09-12 618-207-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J BELLEVILLE IL
2006-09-05 618-357-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PINCKNEYVL IL
2006-08-31 618-340-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RED BUD IL
2006-08-29 618-360-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HARMONY IL
2006-08-29 618-857-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K E ST LOUIS IL
2006-08-28 618-690-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GREENVILLE IL
2006-08-21 618-694-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2006-08-18 618-207-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2006-08-16 618-435-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BENTON IL
2006-08-16 618-638-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 METROPOLIS IL
2006-08-14 618-416-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELLEVILLE IL
2006-08-14 618-581-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-08-14 618-670-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-07-19 618-565-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MURPHYSBO IL
2006-07-19 618-988-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HERRIN IL
2006-07-17 618-203-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CARBONDALE IL
2006-07-11 618-383-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARMI IL
2006-06-22 618-213-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EDGEMONT IL
2006-06-22 618-589-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K O FALLON IL
2006-06-06 618-207-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2006-06-01 618-464-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NASHVILLE IL
2006-05-26 618-567-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-05-26 618-580-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2006-05-24 618-223-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COLLINSVL IL
2006-05-22 618-301-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2006-05-22 618-301-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 COLLINSVL IL
2006-05-22 618-318-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PINCKNEYVL IL
2006-05-22 618-388-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2006-05-22 618-388-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OLNEY IL
2006-05-22 618-421-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROBINSON IL
2006-05-22 618-443-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPARTA IL
2006-05-16 618-204-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MT VERNON IL
2006-05-16 618-243-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OKAWVILLE IL
2006-05-16 618-360-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HARMONY 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.