Data as of Nov 8, 2026

8.17.21.0/24

No anonymizer space · no proxy exits in 30 days

Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas · space held by Level 3 Parent, LLC

Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
8.16.0.0/12AS3356Internet provider1,967
269 always on
Level 3 Parent, LLC
8.0.0.0/9AS3356Internet provider5,760
966 always on

Network & registry

Origin network

AS399433

US
Name
Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas
Type
Business
Registered
Mar 10, 2021
Domain
bluekc.com
Industry
Health Care Services
Spamhaus ASN-DROP
not listed