Data as of Nov 3, 2026
Autonomous system
AS30356
Blue Cross Blue Shield of Michigan Mutual Insurance
Announces 66,304 addresses in 9 prefixes. None of it is anonymizer space.
Type
Business
US
Proxy activity, 30 days
1 exits
Announced prefixes
| Prefix | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|
| 12.107.172.0/24 since Feb 2018 | Business | AT&T Enterprises, LLC | ||
| 12.176.249.0/24 since Feb 2018 | Business | AT&T Enterprises, LLC via AT&T Services, Inc. | ||
| 12.231.98.0/24 since Feb 2018 | Business | AT&T Enterprises, LLC | ||
| 167.242.0.0/16 since Feb 2018 | Business | 1 | Blue Cross Blue Shield of Michigan | |
| 167.242.45.0/24 since Feb 2018 | Business | Blue Cross Blue Shield of Michigan | ||
| 167.242.46.0/24 since Feb 2018 | Business | Blue Cross Blue Shield of Michigan | ||
| 167.242.123.0/24 since Nov 2022 | Business | Blue Cross Blue Shield of Michigan | ||
| 167.242.124.0/24 since Mar 2021 | Business | Blue Cross Blue Shield of Michigan | ||
| 167.242.128.0/17 since Aug 2021 | Business | Blue Cross Blue Shield of Michigan |
Residential-proxy exposure
Providers
2
selling exits here
Proxy providers listing exits
- AnyIP
- FloppyData
Proxy activity
Oct 4, 2026 – Nov 2, 2026
AS30356, day by day
1 observation
Network & history
Profile
- Registered
- Nov 6, 2017
- Domain
- bcbsm.com
- Industry
- Human Rights and Social Advocacy (Human Rights, Environment and Wildlife Conservation, Other)
Routing patterns
How its announcements have moved
Arrivals