AS15157 NORTHWESTERN CORPORATION

• IPv4 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	199.3.108.0/24	NORTHWESTERN CORPORATION		199.0.0.0/14	ARIN
	199.3.109.0/24	NORTHWESTERN CORPORATION		199.0.0.0/14	ARIN
	206.107.235.0/24	NORTHWESTERN CORPORATION		206.104.0.0/14	ARIN

• IPv4 Peers

Country	ASN	Name	Description
	AS13576	SDNW-13576	SOUTH DAKOTA NETWORK
	AS22629	NORWORLD	NORTHWESTERN CORPORATION
	AS174	COGENT-174	Cogent Communications

• IPv4 Upstreams

Country	ASN	Name	Description
	AS174	COGENT-174	Cogent Communications
	AS13576	SDNW-13576	SOUTH DAKOTA NETWORK

IPv4 Upstream Graph

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IPv4 Upstream Graph

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• IPv4 Downstreams

Country	ASN	Name	Description
	AS22629	NORWORLD	NORTHWESTERN CORPORATION

#
# 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/
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# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#


ASNumber:       15157
ASName:         NORWORLD
ASHandle:       AS15157
RegDate:        2000-03-27
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/15157


OrgName:        NORTHWESTERN CORPORATION
OrgId:          NORTHW-28
Address:        125 S. Dakota Ave.
City:           Sioux Falls
StateProv:      SD
PostalCode:     57104
Country:        US
RegDate:        1999-10-22
Updated:        2023-12-12
Ref:            https://rdap.arin.net/registry/entity/NORTHW-28


OrgAbuseHandle: SC1244-ARIN
OrgAbuseName:   Cleverly, Sean 
OrgAbusePhone:  +1-406-497-4131 
OrgAbuseEmail:  Sean.Cleverly@northwestern.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SC1244-ARIN

OrgRoutingHandle: FERRI236-ARIN
OrgRoutingName:   Ferriter, Kelly 
OrgRoutingPhone:  +1-406-497-4585 
OrgRoutingEmail:  kelly.ferriter@northwestern.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/FERRI236-ARIN

OrgTechHandle: WILSO1898-ARIN
OrgTechName:   Wilson, Theron 
OrgTechPhone:  +1-406-497-1652 
OrgTechEmail:  theron.wilson@northwestern.com
OrgTechRef:    https://rdap.arin.net/registry/entity/WILSO1898-ARIN

RTechHandle: SC1244-ARIN
RTechName:   Cleverly, Sean 
RTechPhone:  +1-406-497-4131 
RTechEmail:  Sean.Cleverly@northwestern.com
RTechRef:    https://rdap.arin.net/registry/entity/SC1244-ARIN

RAbuseHandle: SC1244-ARIN
RAbuseName:   Cleverly, Sean 
RAbusePhone:  +1-406-497-4131 
RAbuseEmail:  Sean.Cleverly@northwestern.com
RAbuseRef:    https://rdap.arin.net/registry/entity/SC1244-ARIN

RTechHandle: LHG8-ARIN
RTechName:   Gates, Lorrie H
RTechPhone:  +1-406-497-2870 
RTechEmail:  lorrie.gates@northwestern.com
RTechRef:    https://rdap.arin.net/registry/entity/LHG8-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 1997-2025, American Registry for Internet Numbers, Ltd.
#