ResearchRouting table, RPKI, IRR & looking glass

AS51331 SychrovNET s.r.o

AS51331 (ModernTV) is registered to SychrovNET s.r.o in CZ. It originates 10 prefixes in the global routing table.

7
IPv4 prefixes
3
IPv6 prefixes
1,536
IPv4 addresses
100%
RPKI valid

Who holds AS51331

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

AS number
AS51331
Handle
ModernTV
Organization
SychrovNET s.r.o
Country
CZ
ASPA
None published

What AS51331 announces

Prefixes originated by AS51331 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
3
IPv4 addresses
1,536 (6 /24s)
RPKI valid
10 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS51331
10
With an IRR route object
10 100%

Announced prefixes

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

Who AS51331 is reached through

The AS just before AS51331 in the paths our looking glass collectors hold, for 10 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
RIPEModernTVRIPE-NCC-END-MNT, SNET-MNT

Route objects with origin AS51331: RIPE 11

as-sets that list AS51331 (10)