HomeASN LookupAS2504

AS2504

NCA5 - Kyoto University

Announced Prefixes (BGP)
4total
4 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)65,536
Announced (BGP)132,096
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
100
Prefix Limit (IPv6)
5
Allocated
—

Announced Prefixes

(BGP)4
|
Prefix
RPKI
IRR
Last Seen
130.54.0.0/16
No ROA—5/25/2026
133.3.0.0/16
No ROA—5/25/2026
192.50.8.0/23
No ROA—5/25/2026
192.50.24.0/23
 Valid—5/25/2026

Allocated Prefixes

(RIR)1
Prefix
Country
RIR
Status
130.54.0.0/16🇯🇵 JPAPNICallocated
ASPA
No ASPA
External Links
Hurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/2504

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/2504" | jq