AS30356 Blue Cross Blue Shield of Michigan Mutual Insurance

BCBSM - Blue Cross Blue Shield of Michigan Mutual Insurance · registered in the United States

IPv4 addresses66,04811 prefixes · 0.002% of announced IPv4

Rank in United States#925largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,740of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS30356 in ASN lookup Look up an IP in this network (12.107.172.1) All networks in United States

IPv4 prefixes

All 11 prefixes, in address order.

12.107.172.0/24
12.176.249.0/24
12.231.98.0/24
167.242.0.0/17
167.242.128.0/18
167.242.192.0/19
167.242.224.0/21
167.242.232.0/24
167.242.234.0/23
167.242.236.0/22
167.242.240.0/20

Similar-sized networks in United States

ASNNameIPv4 addresses

AS26335#922 MTSU - Middle Tennessee State University66,048

AS26817#923 MICROC-ASN - Microchip Technology Inc.66,048

AS29842#924 ETSU-NET - East Tennessee State University66,048

AS32996#926 AGRIBANK-STPAUL - AgriBank, FCB66,048

AS47024#927 THE-METROHEALTH-SYSTEM - The MetroHealth System66,048

AS398564#928 EUP-SCOTS-NET - Pennsylvania Western University66,048

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