ResearchRouting table, RPKI, IRR & looking glass

AS42923 PKP Polskie Linie Kolejowe S.A.

AS42923 (PLK-AS) is registered to PKP Polskie Linie Kolejowe S.A. in PL. It originates 3 prefixes in the global routing table.

3
IPv4 prefixes
0
IPv6 prefixes
1,280
IPv4 addresses
100%
RPKI valid

Who holds AS42923

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

AS number
AS42923
Handle
PLK-AS
Organization
PKP Polskie Linie Kolejowe S.A.
Country
PL
ASPA
None published

What AS42923 announces

Prefixes originated by AS42923 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
0
IPv4 addresses
1,280 (5 /24s)
RPKI valid
3 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS42923
3
With an IRR route object
3 100%

Announced prefixes

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

IPv4 (3)

RPKI valid   RPKI invalid   no ROA covers it

Who AS42923 is reached through

The AS just before AS42923 in the paths our looking glass collectors hold, for 3 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
RIPEPLK-ASRIPE-NCC-END-MNT, AS8798-MNT, NETIA-MNT, AS42923-MNT

Route objects with origin AS42923: RIPE 4

as-sets that list AS42923 (9)