ResearchRouting table, RPKI, IRR & looking glass

AS177 University of Michigan

AS177 (UMICH-AS-1) is registered to University of Michigan in US. It originates 2 prefixes in the global routing table.

0
IPv4 prefixes
2
IPv6 prefixes
100%
RPKI valid

Who holds AS177

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

AS number
AS177
Handle
UMICH-AS-1
Organization
University of Michigan
Country
US
ASPA
None published

What AS177 announces

Prefixes originated by AS177 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
0
IPv6 prefixes
2
RPKI valid
2 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS177
3
With an IRR route object
2 100%

Announced prefixes

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

IPv6 (2)

RPKI valid   RPKI invalid   no ROA covers it

Who AS177 buys transit from

Inferred from the AS paths in the RouteViews tables and our own collectors’ feeds, refreshed every 4 hours, most-seen first. 1 upstream.

Who buys transit from AS177

None seen: AS177 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.

Sourceas-nameMaintained by
RADBUMICH-AS-1MAINT-AS36375

Route objects with origin AS177: RADB 3

as-sets that list AS177 (2)