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	Prefix	Description
	66.242.192.0/24	Madison Telephone Company
	66.242.192.0/19	Madison Telephone Company
	66.242.205.0/24	Madison Telephone Company
	66.242.206.0/23	Madison Telephone Company
	66.242.208.0/22	Madison Telephone Company
	66.242.221.0/24	Madison Telephone Company
	76.77.224.0/20	Madison Telephone Company
	76.77.232.0/22	Madison Telephone Company
	76.77.236.0/22	Madison Telephone Company
	2605:1680::/32	Madison Telephone Company

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✘
	AS6939	Hurricane Electric LLC	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✔
	AS174	Cogent Communications, LLC	✔	✘
	AS15195	Alhambra-Grantfork Telephone Company	✔	✘
	AS137409	GSL Networks Pty LTD	✔	✘
	AS49544	i3D.net B.V	✔	✘
	AS11232	Midcontinent Communications	✔	✘
	AS4826	Vocus Connect International Backbone	✔	✘
	AS32709	Joink, LLC	✔	✘
	AS62642	Bigleaf Networks, Inc.	✔	✘
	AS13335	Cloudflare, Inc.	✔	✘
	AS24482	SG.GS	✔	✘
	AS32590	Valve Corporation	✔	✘
	AS199524	Gcore S.A.	✔	✘
	AS1239	Sprint Wireline (Cogent)	✔	✘
	AS14907	Wikimedia Foundation Inc.	✔	✘
	AS53597	Hoyos Consulting LLC	✔	✘
	AS36236	NetActuate, Inc	✔	✘
	AS8220	COLT	✔	✘

ASHandle:       AS18596
OrgID:          MADT
ASName:         MADISONTELCO
ASNumber:       18596
RegDate:        2000-09-18
Updated:        2012-02-24
TechHandle:     JB1300-ARIN
Source:         ARIN



OrgID:          MADT
OrgName:        Madison Telephone Company
CanAllocate:    
Street:         PO 29
Street:         21668 Double Arch Dr 
City:           Staunton
State/Prov:     IL
Country:        US
PostalCode:     62088
Comment:        Please submit all abuse complaints to
Comment:        abuse@madisontelco.com
RegDate:        2000-01-24
Updated:        2025-11-05
OrgAdminHandle: GHO34-ARIN
OrgTechHandle:  JB1300-ARIN
OrgTechHandle:  WALDR142-ARIN
OrgAbuseHandle: ABUSE655-ARIN
Source:         ARIN





OrgAdminHandle:       GHO34-ARIN
OrgAdminName:         Gary Hoffstetter
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        JB1300-ARIN
OrgTechName:          Jan Bacher
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        WALDR142-ARIN
OrgTechName:          Justin Waldrop
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ABUSE655-ARIN
OrgAbuseName:          Abuse
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           JB1300-ARIN
TechName:             Jan Bacher
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-02-09T03:25:21Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-hurricane	24477
RADB	as-hurricanev6	20348
ARIN	as18596:as-all	2
LEVEL3	as-level3-origins-na	0
LEVEL3	as-lightcore	84
RIPE	as-transroute-spec	19663