ResearchRouting table, RPKI, IRR & looking glass

AS197039 Nomura International Plc

AS197039 (NOMURA-NET1-AS1) is registered to Nomura International Plc in GB. It originates 24 prefixes in the global routing table.

24
IPv4 prefixes
0
IPv6 prefixes
6,144
IPv4 addresses
0%
RPKI valid

Who holds AS197039

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

AS number
AS197039
Handle
NOMURA-NET1-AS1
Organization
Nomura International Plc
Country
GB
ASPA
None published

What AS197039 announces

Prefixes originated by AS197039 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
24
IPv6 prefixes
0
IPv4 addresses
6,144 (24 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
24
ROAs naming AS197039
0
With an IRR route object
24 100%

Who AS197039 is reached through

The AS just before AS197039 in the paths our looking glass collectors hold, for 24 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
RIPENOMURA-NET1-AS1RIPE-NCC-END-MNT, MNT-NOMURA

Route objects with origin AS197039: RADB 31 · RIPE 5

as-sets that list AS197039 (6)