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AS15149
AS15149 Core Technology Services, Inc.
EZZI-101-BGP - Core Technology Services, Inc. · registered in the United States
IPv4 addresses 25,344 11 prefixes · <0.001% of announced IPv4
Rank in United States #1,914 largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide #5,418 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
IPv4 prefixes
All 11 prefixes, in address order.
64.29.188.0/22 66.199.224.0/21 66.199.232.0/22 72.9.96.0/20 96.45.68.0/22 216.150.64.0/19 216.169.96.0/20 216.169.112.0/22 216.169.116.0/23 216.169.119.0/24 216.169.120.0/21
Similar-sized networks in United States
ASN Name IPv4 addresses
AS4043 #1911 MIC-ASN - Montana Internet Corporation25,344
AS13855 #1912 CFU-NET - The Municipal Communications Utility of the City of Cedar Falls, Iowa25,344
AS48806 #1913 stackster Stackster LLC25,344
AS18434 #1915 FNIS - Fidelity National Information Services, Inc.25,344
AS18834 #1916 NETWORKIP - Network IP25,344
AS22255 #1917 ALLEGHENYHEALTHNETWORK - Allegheny Health Network25,344
IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources