AS18596

Name: AS18596 — Madison Telephone Company
Creator: ipdex

Madison Telephone Company ISP registered in United States

9IPv4 prefixes

1IPv6 prefixes

#8,328AS Rank

327/327RIS visibility

#3,209Rank in United States

2000-09-18Allocated

Madison Telephone Company (AS18596) — ISP, registered in United States. announces 9 IPv4 prefixes + 1 IPv6 prefixes. Rank in United States: #3209. Allocated: 2000-09-18.

IPv4 9IPv6 1

Announced prefixes · 10

v4 66.242.192.0/19 unknown
v4 66.242.192.0/24 unknown
v4 66.242.205.0/24 unknown
v4 66.242.206.0/23 unknown
v4 66.242.208.0/22 unknown
v4 66.242.221.0/24 unknown
v4 76.77.224.0/20 unknown
v4 76.77.232.0/22 unknown
v4 76.77.236.0/22 unknown
v6 2605:1680::/32 unknown

Routing: 9 IPv4 · 1 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	10
2026-06-13	10

Internet Exchanges · 1

Equinix Chicago Chicago 10 Gbps

AS topology · Customer cone 2

Providers · 2

AS174 Cogent Communications, LLC
AS6939 Hurricane Electric LLC

Customers · 1

AS15195 Alhambra-Grantfork Telephone Company

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