HomeASN LookupAS203645

AS203645

🇨🇿

RYZNAR-AS Jan RyznarORG-JR41-RIPE

RIPENCCallocated
Announced Prefixes (BGP)
27total
4 IPv423 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)2,048
Announced (BGP)1,024
IPv6 Addresses ⓘ
Allocated (RIR)8.2×10^28
Announced (BGP)4.3×10^27
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
100
Country
🇨🇿 CZ
RIR
RIPENCC
Status
allocated
Allocated
1/7/2016

Announced Prefixes

(BGP)27
|
Prefix
RPKI
IRR
Last Seen
185.133.188.0/24
No ROA—5/26/2026
185.133.189.0/24
No ROA—5/26/2026
185.133.190.0/24
No ROA—5/26/2026
185.133.191.0/24
No ROA—5/26/2026
2a01:7d20:100::/40
No ROA—5/26/2026
2a01:7d20:101::/48
No ROA—5/26/2026
2a01:7d20:200::/40
No ROA—5/26/2026
2a01:7d20:201::/48
No ROA—5/26/2026
2a01:7d20:300::/40
No ROA—5/26/2026
2a01:7d20:300::/48
No ROA—5/26/2026
1–10 of 27
1 / 3

Allocated Prefixes

(RIR)16
Prefix
Country
RIR
Status
185.133.188.0/22🇨🇿 CZRIPENCCallocated
185.133.188.0/24🇨🇿 CZRIPEassigned
185.133.189.0/24🇨🇿 CZRIPEassigned
185.133.190.0/24🇨🇿 CZRIPEassigned
185.133.191.0/24🇨🇿 CZRIPEassigned
2a01:7d20::/32🇨🇿 CZRIPENCCallocated
2a01:7d20:100::/40🇨🇿 CZRIPEassigned
2a01:7d20:200::/40🇨🇿 CZRIPEassigned
2a01:7d20:300::/40🇨🇿 CZRIPEassigned
2a01:7d20:500::/40🇨🇿 CZRIPEassigned
1–10 of 16
1 / 2
ASPA
No ASPA
Abuse Contact
External Links
RIPE WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/203645

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

curl -s "https://api.ipctl.io/v1/asn/203645" | jq