ResearchRouting table, RPKI, IRR & looking glass

AS398642 SKANSKA USA INC

AS398642 (SKANSKA-USA-WEST) is registered to SKANSKA USA INC in US. It originates 4 prefixes in the global routing table.

3
IPv4 prefixes
1
IPv6 prefixes
2,048
IPv4 addresses
75%
RPKI valid

Who holds AS398642

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

AS number
AS398642
Handle
SKANSKA-USA-WEST
Organization
SKANSKA USA INC
Country
US
ASPA
None published

What AS398642 announces

Prefixes originated by AS398642 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
3
IPv6 prefixes
1
IPv4 addresses
2,048 (8 /24s)
RPKI valid
3 75%
RPKI invalid
0
RPKI not found
1
ROAs naming AS398642
3
With an IRR route object
4 100%

Announced prefixes

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

IPv4 (3)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS398642 is reached through

The AS just before AS398642 in the paths our looking glass collectors hold, for 4 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

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

Sourceas-nameMaintained by
ARINSKANSKA-USA-WESTMNT-SU-405

Route objects with origin AS398642: RIPE 3 · ARIN 1

as-sets that list AS398642 (3)