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Announced By
Origin ASAnnouncementDescription
AS7018 167.242.233.0/24 Blue Cross Blue Shield of Michigan
AS3356 167.242.233.0/24 Blue Cross Blue Shield of Michigan

Less Specific Announcements
Origin ASAnnouncementDescription
AS30356 167.242.128.0/17 Blue Cross Blue Shield of Michigan
AS30356 167.242.0.0/16