ResearchRouting table, RPKI, IRR & looking glass

AS31477 Duocast B.V.

AS31477 (DUOCAST-AS) is registered to Duocast B.V. in NL. It originates 55 prefixes in the global routing table.

43
IPv4 prefixes
12
IPv6 prefixes
30,720
IPv4 addresses
69%
RPKI valid

Who holds AS31477

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

AS number
AS31477
Handle
DUOCAST-AS
Organization
Duocast B.V.
Country
NL
ASPA
None published

What AS31477 announces

Prefixes originated by AS31477 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
43
IPv6 prefixes
12
IPv4 addresses
30,720 (120 /24s)
RPKI valid
38 69%
RPKI invalid
0
RPKI not found
17
ROAs naming AS31477
27
With an IRR route object
50 90%

Who AS31477 is reached through

The AS just before AS31477 in the paths our looking glass collectors hold, for 55 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS31477 publishes no ASPA of its own. 3 ASes name it as a provider in theirs. Check a path.

The 3 ASes that name AS31477 as a provider