HomeASN LookupAS21896

AS21896

🇺🇸

ALLIANT-ENERGY - Alliant Energy18d1c90467c0cf2d8b4224b1a66bbfd2

ARINassigned
Announced Prefixes (BGP)
8total
8 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)18,944
Announced (BGP)4,096
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
20
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
1/8/2009

Announced Prefixes

(BGP)8
|
Prefix
RPKI
IRR
Last Seen
198.7.38.0/23
No ROA
ARINRADB
5/25/2026
198.7.42.0/23
No ROA
ARINRADB
5/25/2026
198.7.44.0/23
No ROA
ARINRADB
5/25/2026
198.7.46.0/23
No ROA
ARINRADB
5/25/2026
207.71.128.0/23
No ROA
ARINRADB
5/25/2026
207.71.134.0/23
No ROA
ARINRADB
5/25/2026
207.71.136.0/23
No ROA
ARINRADB
5/25/2026
207.71.142.0/23
No ROA
ARINRADB
5/25/2026

Allocated Prefixes

(RIR)5
Prefix
Country
RIR
Status
198.7.32.0/20🇺🇸 USARINallocated
198.7.48.0/21🇺🇸 USARINallocated
204.126.86.0/23🇺🇸 USARINallocated
207.71.128.0/19🇺🇸 USARINallocated
207.71.176.0/20🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/21896

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

curl -s "https://api.ipctl.io/v1/asn/21896" | jq