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AS10359 Epic Systems Corporation

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

Epic Systems Corporation epic.com

US 2 Routes

AS Data

AS10359

AS10359 – Epic Systems Corporation

AS Number	10359
AS Name	EPICSYS
Organization	Epic Systems Corporation (esc-103)
Country	US
Website	epic.com
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2010-04-12

ASN Intelligence API for production workflows

Use ASN data for AS10359 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.204.56.0/22	AS10359	Epic Systems Corporation	Epic Systems Corporation	1024
2620:72::/48	AS10359	Epic Systems Corporation	Epic Systems Corporation	~1×10²⁴

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       10359
ASName:         EPICSYS
ASHandle:       AS10359
RegDate:        2010-04-12
Updated:        2012-03-02
Comment:        http://www.epic.com/about-index.php
Ref:            https://rdap.arin.net/registry/autnum/10359


OrgName:        Epic Systems Corporation
OrgId:          ESC-103
Address:        1979 Milky Way
City:           Verona
StateProv:      WI
PostalCode:     53593
Country:        US
RegDate:        2006-12-18
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/ESC-103


OrgTechHandle: HOSTM1543-ARIN
OrgTechName:   Hostmaster
OrgTechPhone:  +1-608-271-9000 
OrgTechEmail:  hostmaster@epic.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM1543-ARIN

OrgAbuseHandle: HOSTM1543-ARIN
OrgAbuseName:   Hostmaster
OrgAbusePhone:  +1-608-271-9000 
OrgAbuseEmail:  hostmaster@epic.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM1543-ARIN

RAbuseHandle: HOSTM1543-ARIN
RAbuseName:   Hostmaster
RAbusePhone:  +1-608-271-9000 
RAbuseEmail:  hostmaster@epic.com
RAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM1543-ARIN

RTechHandle: HOSTM1543-ARIN
RTechName:   Hostmaster
RTechPhone:  +1-608-271-9000 
RTechEmail:  hostmaster@epic.com
RTechRef:    https://rdap.arin.net/registry/entity/HOSTM1543-ARIN

RNOCHandle: HOSTM1543-ARIN
RNOCName:   Hostmaster
RNOCPhone:  +1-608-271-9000 
RNOCEmail:  hostmaster@epic.com
RNOCRef:    https://rdap.arin.net/registry/entity/HOSTM1543-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "10359",
    "as_handle" : "AS10359",
    "as_name" : "EPICSYS",
    "tech_contacts" : [ "HOSTM1543-ARIN", "HOSTM1543-ARIN" ],
    "abuse_contacts" : [ "HOSTM1543-ARIN", "HOSTM1543-ARIN" ],
    "date_created" : "2010-04-12",
    "date_updated" : "2012-03-02",
    "source" : "https://rdap.arin.net/registry/autnum/10359"
  } ],
  "organization" : {
    "handle" : "ESC-103",
    "name" : "Epic Systems Corporation",
    "address" : [ "1979 Milky Way", "Verona", "WI", "53593", "US" ],
    "street" : "Milky Way",
    "city" : "Verona",
    "state" : "WI",
    "zip_code" : "53593",
    "country" : [ "US" ],
    "date_created" : "2006-12-18",
    "date_updated" : "2011-09-24",
    "source" : "https://rdap.arin.net/registry/entity/ESC-103",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "HOSTM1543-ARIN",
    "name" : "Hostmaster",
    "email" : [ "hostmaster@epic.com" ],
    "phone" : [ "+1-608-271-9000" ],
    "source" : "https://rdap.arin.net/registry/entity/HOSTM1543-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "HOSTM1543-ARIN",
    "name" : "Hostmaster",
    "email" : [ "hostmaster@epic.com" ],
    "phone" : [ "+1-608-271-9000" ],
    "source" : "https://rdap.arin.net/registry/entity/HOSTM1543-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS40264	Charter Communications LLC	US
AS11796	Airstream Communications, LLC	US
AS4181	TDS TELECOM	US

Upstreams

AS Number	Description	Country
AS40264	Charter Communications LLC	US
AS11796	Airstream Communications, LLC	US
AS4181	TDS TELECOM	US

Frequently Asked Questions

What is ASN AS10359?

ASN AS10359 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS10359?

AS10359 is listed under Epic Systems Corporation.

What do peers, upstreams, and downstreams mean?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.