HomeASN LookupAS4721

AS4721

JCN - JCOM Co., Ltd.

Announced Prefixes (BGP)
163total
162 IPv41 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)562,176
Announced (BGP)1.3M
IPv6 Addresses ⓘ
Allocated (RIR)7.9×10^28
Announced (BGP)7.9×10^28
Prefix Limit (IPv4)
1,000
Prefix Limit (IPv6)
5
Allocated
—

Announced Prefixes

(BGP)163
|
Prefix
RPKI
IRR
Last Seen
14.193.0.0/16
 Valid
RADB
5/25/2026
14.193.0.0/17
 Valid
RADB
5/25/2026
14.193.128.0/17
 Valid
RADB
5/25/2026
61.203.224.0/19
 Valid
RADB
5/25/2026
61.203.224.0/20
 Valid
RADB
5/25/2026
61.203.240.0/20
 Valid
RADB
5/25/2026
110.4.48.0/20
 Valid
RADB
5/25/2026
110.4.48.0/21
 Valid
RADB
5/25/2026
110.4.56.0/21
 Valid
RADB
5/25/2026
110.92.80.0/20
 Valid
RADB
5/25/2026
1–10 of 163
1 / 17

Allocated Prefixes

(RIR)48
Prefix
Country
RIR
Status
14.193.0.0/16🇯🇵 JPAPNICallocated
110.4.48.0/20🇯🇵 JPAPNICallocated
110.92.80.0/20🇯🇵 JPAPNICallocated
110.93.0.0/21🇯🇵 JPAPNICallocated
110.173.240.0/20🇯🇵 JPAPNICallocated
110.232.0.0/19🇯🇵 JPAPNICallocated
110.232.128.0/21🇯🇵 JPAPNICallocated
111.90.0.0/17🇯🇵 JPAPNICallocated
112.137.32.0/20🇯🇵 JPAPNICallocated
112.137.64.0/18🇯🇵 JPAPNICallocated
1–10 of 48
1 / 5
ASPA
No ASPA
External Links
Hurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/4721

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

curl -s "https://api.ipctl.io/v1/asn/4721" | jq