ResearchRouting table, RPKI, IRR & looking glass

AS203662 3K33 sp. z o.o.

AS203662 (PL-3K33) is registered to 3K33 sp. z o.o. in PL. It originates 11 prefixes in the global routing table.

5
IPv4 prefixes
6
IPv6 prefixes
2,048
IPv4 addresses
100%
RPKI valid

Who holds AS203662

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

AS number
AS203662
Handle
PL-3K33
Organization
3K33 sp. z o.o.
Country
PL
ASPA
5 providers

What AS203662 announces

Prefixes originated by AS203662 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
5
IPv6 prefixes
6
IPv4 addresses
2,048 (8 /24s)
RPKI valid
11 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS203662
8
With an IRR route object
11 100%

Announced prefixes

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

Who AS203662 is reached through

The AS just before AS203662 in the paths our looking glass collectors hold, for 11 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS203662 publishes an ASPA naming these providers. Check a path.

Routing registry objects

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