ASN AS64226 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS64226?

AS64226 is listed under MDU Resources Group, Inc..

What do peers, upstreams, and downstreams mean in ASN data?

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 shown for an ASN?

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

How can I access the full ASN tables?

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AS64226 MDU Resources Group, Inc.

ASN Lookup Tool

MDU Resources Group, Inc. mdu.com

US 18 Routes

AS Data

AS64226

AS64226 – MDU Resources Group, Inc.

AS Number	64226
AS Name	MDURESOURCES
Organization	MDU Resources Group, Inc. (montan-2)
Country	US
Website	mdu.com
Number of IPv4 Routes	18
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2015-10-06

ASN Intelligence API for production workflows

Use ASN data for AS64226 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
162.57.243.0/24	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	256
162.57.192.0/18	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	16384
162.57.235.0/24	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	256
162.57.237.0/24	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	256
162.57.128.0/18	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	16384
162.57.0.0/16	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	65536
162.57.244.0/24	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	256
162.57.128.0/17	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	32768
162.57.236.0/24	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	256
162.57.242.0/24	AS64226	MDU Resources Group, Inc.	MDU Resources Group, Inc.	256

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:       64226
ASName:         MDURESOURCES
ASHandle:       AS64226
RegDate:        2015-10-06
Updated:        2015-11-15
Ref:            https://rdap.arin.net/registry/autnum/64226


OrgName:        MDU Resources Group, Inc.
OrgId:          MONTAN-2
Address:        400 N. 4th Street
City:           Bismarck
StateProv:      ND
PostalCode:     58501
Country:        US
RegDate:        1992-08-04
Updated:        2015-10-23
Ref:            https://rdap.arin.net/registry/entity/MONTAN-2


OrgTechHandle: MARTI1030-ARIN
OrgTechName:   Martin, Paul 
OrgTechPhone:  +1-701-530-1720 
OrgTechEmail:  paul.martin@mdu.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MARTI1030-ARIN

OrgAbuseHandle: MARTI1030-ARIN
OrgAbuseName:   Martin, Paul 
OrgAbusePhone:  +1-701-530-1720 
OrgAbuseEmail:  paul.martin@mdu.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MARTI1030-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" : "64226",
    "as_handle" : "AS64226",
    "as_name" : "MDURESOURCES",
    "tech_contacts" : [ "MARTI1030-ARIN" ],
    "abuse_contacts" : [ "MARTI1030-ARIN" ],
    "date_created" : "2015-10-06",
    "date_updated" : "2015-11-15",
    "source" : "https://rdap.arin.net/registry/autnum/64226"
  } ],
  "organization" : {
    "handle" : "MONTAN-2",
    "name" : "MDU Resources Group, Inc.",
    "address" : [ "400 N. 4th Street", "Bismarck", "ND", "58501", "US" ],
    "street" : "N. 4th Street",
    "city" : "Bismarck",
    "state" : "ND",
    "zip_code" : "58501",
    "country" : [ "US" ],
    "date_created" : "1992-08-04",
    "date_updated" : "2015-10-23",
    "source" : "https://rdap.arin.net/registry/entity/MONTAN-2",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "MARTI1030-ARIN",
    "name" : "Martin, Paul",
    "email" : [ "paul.martin@mdu.com" ],
    "phone" : [ "+1-701-530-1720" ],
    "source" : "https://rdap.arin.net/registry/entity/MARTI1030-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "MARTI1030-ARIN",
    "name" : "Martin, Paul",
    "email" : [ "paul.martin@mdu.com" ],
    "phone" : [ "+1-701-530-1720" ],
    "source" : "https://rdap.arin.net/registry/entity/MARTI1030-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS26794	Dakota Carrier Network	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS26794	Dakota Carrier Network	US