HomeASN LookupAS3557

AS3557

🇺🇸

ISC-AS - Internet Systems Consortium, Inc.ff47ad72d842f1d3b58d0494dd8d2af9

ARINassigned
Announced Prefixes (BGP)
4total
2 IPv42 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)512
Announced (BGP)768
IPv6 Addresses ⓘ
Allocated (RIR)2.4×10^24
Announced (BGP)3.6×10^24
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
10
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
4/21/1994

Announced Prefixes

(BGP)4
|
Prefix
RPKI
IRR
Last Seen
192.5.4.0/23
 Valid
ARINRADB
5/25/2026
192.5.5.0/24
 Valid
ARINRADB
5/25/2026
2001:500:2e::/47
 Valid
ARINRADB
5/25/2026
2001:500:2f::/48
 Valid
ARINRADB
5/25/2026

Allocated Prefixes

(RIR)2
Prefix
Country
RIR
Status
192.5.4.0/23🇺🇸 USARINallocated
2001:500:2e::/47🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/3557

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

curl -s "https://api.ipctl.io/v1/asn/3557" | jq