AS30356
Blue Cross Blue Shield of Michigan Mutual Insurance
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS30356 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 12.231.98.0/24 | 11,580 | 2026-07-23 17:48:47 |
| 167.242.128.0/17 | 9,516 | 2026-07-23 17:48:47 |
| 167.242.45.0/24 | 9,511 | 2026-07-23 17:48:47 |
| 167.242.46.0/24 | 9,494 | 2026-07-23 17:48:47 |
| 12.107.172.0/24 | 6,088 | 2026-07-23 17:48:45 |
| 12.176.249.0/24 | 6,032 | 2026-07-23 17:48:45 |
| 167.242.0.0/16 | 5,676 | 2026-07-23 17:51:47 |
| 167.242.123.0/24 | 4,561 | 2026-07-23 17:51:54 |
| 167.242.124.0/24 | 3,651 | 2026-07-23 17:48:47 |
Frequently Asked Questions
What is AS30356?
AS30356 is an Autonomous System Number assigned to Blue Cross Blue Shield of Michigan Mutual Insurance. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS30356 announce?
AS30356 announces 66.0K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in United States.
Who operates AS30356?
AS30356 is operated by Blue Cross Blue Shield of Michigan Mutual Insurance. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS30356 registered in?
AS30356 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
