ResearchRouting table, RPKI, IRR & looking glass

AS203833 firstcolo GmbH

AS203833 (AT-FIRSTCOLO) is registered to firstcolo GmbH in DE. It originates 8 prefixes in the global routing table.

7
IPv4 prefixes
1
IPv6 prefixes
2,816
IPv4 addresses
50%
RPKI valid

Who holds AS203833

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

AS number
AS203833
Handle
AT-FIRSTCOLO
Organization
firstcolo GmbH
Country
DE
ASPA
None published

What AS203833 announces

Prefixes originated by AS203833 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
7
IPv6 prefixes
1
IPv4 addresses
2,816 (11 /24s)
RPKI valid
4 50%
RPKI invalid
0
RPKI not found
4
ROAs naming AS203833
5
With an IRR route object
8 100%

Announced prefixes

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

Who AS203833 is reached through

The AS just before AS203833 in the paths our looking glass collectors hold, for 8 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
RIPEAT-FIRSTCOLORIPE-NCC-END-MNT, ACCELERATED-MNT, MNT-FIRSTCOLO

Route objects with origin AS203833: RIPE 8 · RADB 2

as-sets that list AS203833 (6)