HomeASN LookupAS33503

AS33503

🇺🇸

MCW-1-AS - Medical College of Wisconsinbd508207434661e1be505fe072357286

ARINassigned
Announced Prefixes (BGP)
7total
6 IPv41 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)65,536
Announced (BGP)66,816
IPv6 Addresses ⓘ
Allocated (RIR)1.9×10^25
Announced (BGP)1.9×10^25
Prefix Limit (IPv4)
100
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
1/5/2005

Announced Prefixes

(BGP)7
|
Prefix
RPKI
IRR
Last Seen
141.106.0.0/16
 Valid
ARINRADB
5/25/2026
141.106.12.0/24
 Valid
ARIN
5/25/2026
141.106.67.0/24
 Valid
ARIN
5/25/2026
141.106.68.0/24
 Valid
ARIN
5/25/2026
141.106.69.0/24
 Valid
ARIN
5/25/2026
141.106.114.0/24
 Valid
ARIN
5/25/2026
2620:10d::/44
 Valid
ARINRADB
5/25/2026

Allocated Prefixes

(RIR)2
Prefix
Country
RIR
Status
141.106.0.0/16🇺🇸 USARINallocated
2620:10d::/44🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/33503

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

curl -s "https://api.ipctl.io/v1/asn/33503" | jq