ResearchRouting table, RPKI, IRR & looking glass

AS30356 Blue Cross Blue Shield of Michigan Mutual Insurance

AS30356 (BCBSM) is registered to Blue Cross Blue Shield of Michigan Mutual Insurance in US. It originates 9 prefixes in the global routing table.

9
IPv4 prefixes
0
IPv6 prefixes
66,304
IPv4 addresses
0%
RPKI valid

Who holds AS30356

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS30356
Handle
BCBSM
Organization
Blue Cross Blue Shield of Michigan Mutual Insurance
Country
US
ASPA
None published

What AS30356 announces

Prefixes originated by AS30356 in the routing table our collectors hold (kept current as routes change), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
9
IPv6 prefixes
0
IPv4 addresses
66,304 (259 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
9
ROAs naming AS30356
0
With an IRR route object
0 0%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

Who AS30356 buys transit from

Inferred from the AS paths in the RouteViews tables and our own collectors’ feeds, refreshed every 4 hours, most-seen first. 2 upstreams.

Who buys transit from AS30356

None seen: AS30356 does not appear to provide transit to anyone.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Route objects with origin AS30356: LEVEL3 4

as-sets that list AS30356 (3)