AS399432#17687 AS-MS-78058 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas256
AS399433#17688 AS-MS-78058 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas256
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