HomeASN LookupAS16503

AS16503

🇺🇸

ZAYO-16503 - Zayo Bandwidth34d342be0361261df3d29cd38705589c

ARINassigned
Announced Prefixes (BGP)
4total
4 IPv40 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)20,480
Announced (BGP)20,736
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
20
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
5/4/2000

Announced Prefixes

(BGP)4
|
Prefix
RPKI
IRR
Last Seen
64.20.96.0/19
 Valid
RADB
5/24/2026
64.124.127.0/24
 Valid—5/24/2026
66.45.192.0/19
 Valid
RADB
5/24/2026
216.178.48.0/20
 Valid
RADB
5/24/2026

Allocated Prefixes

(RIR)3
Prefix
Country
RIR
Status
64.20.96.0/19🇺🇸 USARINallocated
66.45.192.0/19🇺🇸 USARINallocated
216.178.48.0/20🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/16503

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

curl -s "https://api.ipctl.io/v1/asn/16503" | jq