HomeASN LookupAS18596

AS18596

🇺🇸

MADISONTELCO - Madison Telephone Companyed1d3bf8b28cf7849e51f0bd058203c0

ARINassigned
Announced Prefixes (BGP)
10total
9 IPv41 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)12,288
Announced (BGP)16,640
IPv6 Addresses ⓘ
Allocated (RIR)7.9×10^28
Announced (BGP)7.9×10^28
Prefix Limit (IPv4)
20
Prefix Limit (IPv6)
5
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
9/18/2000

Announced Prefixes

(BGP)10
|
Prefix
RPKI
IRR
Last Seen
66.242.192.0/19
No ROA
ARIN
5/25/2026
66.242.192.0/24
No ROA—5/25/2026
66.242.205.0/24
No ROA—5/25/2026
66.242.206.0/23
No ROA—5/25/2026
66.242.208.0/22
No ROA—5/25/2026
66.242.221.0/24
No ROA—5/25/2026
76.77.224.0/20
No ROA
ARIN
5/25/2026
76.77.232.0/22
No ROA—5/25/2026
76.77.236.0/22
No ROA—5/25/2026
2605:1680::/32
No ROA—5/25/2026

Allocated Prefixes

(RIR)3
Prefix
Country
RIR
Status
66.242.192.0/19🇺🇸 USARINallocated
76.77.224.0/20🇺🇸 USARINallocated
2605:1680::/32🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/18596

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

curl -s "https://api.ipctl.io/v1/asn/18596" | jq