ASN AS18897 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18897?

AS18897 is listed under Montana Sky Networks, 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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AS18897 Montana Sky Networks, Inc.

ASN Lookup Tool

Montana Sky Networks, Inc. montanasky.net

US 17 Routes

AS Data

AS18897

AS18897 – Montana Sky Networks, Inc.

AS Number	18897
AS Name	MONTANA-SKY-NETWORKS-INC
Organization	Montana Sky Networks, Inc.(msn-15)
Country	US
Website	montanasky.net
Number of IPv4 Routes	12
Number of IPv6 Routes	5
ASN type	ISP
Registry	ARIN
Date Allocated	2007-01-19

ASN Intelligence API for production workflows

Use ASN data for AS18897 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2604:7c80:e::/48	AS18897	Montana Sky Networks, Inc.	Montana Sky Networks, Inc.	~1×10²⁴
66.135.88.0/22	AS18897	Montana Sky Networks, Inc.	Montana Sky Networks, Inc.	1024
66.135.72.0/22	AS18897	Montana Sky Networks, Inc.	Montana Sky Networks, Inc.	1024
66.135.64.0/21	AS18897	Montana Sky Networks, Inc.	Montana Sky Networks, Inc.	2048
2604:7c80::/32	AS18897	Montana Sky Networks, Inc.	Montana Sky Networks, Inc.	~79×10²⁷
2606:b580::/32	AS18897	Montana Sky Networks, Inc.	Montana Sky West LLC	~79×10²⁷
2604:7c80:12::/48	AS18897	Montana Sky Networks, Inc.	Montana Sky Networks, Inc.	~1×10²⁴
66.135.87.0/24	AS18897	Montana Sky Networks, Inc.	Montana Sky Networks, Inc.	256
66.135.84.0/23	AS18897	Montana Sky Networks, Inc.	Montana Sky Networks, Inc.	512
66.135.92.0/22	AS18897	Montana Sky Networks, Inc.	Montana Sky Networks, Inc.	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:       18897
ASName:         MONTANA-SKY-NETWORKS-INC
ASHandle:       AS18897
RegDate:        2007-01-19
Updated:        2022-02-22    
Ref:            https://rdap.arin.net/registry/autnum/18897


OrgName:        Montana Sky Networks, Inc.
OrgId:          MSN-15
Address:        1286 Burns Way
City:           Kalispell
StateProv:      MT
PostalCode:     59901
Country:        US
RegDate:        2004-08-25
Updated:        2019-05-25
Ref:            https://rdap.arin.net/registry/entity/MSN-15


OrgAbuseHandle: ENDER42-ARIN
OrgAbuseName:   Enders, Tim 
OrgAbusePhone:  +1-406-752-4335 
OrgAbuseEmail:  tenders@montanasky.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ENDER42-ARIN

OrgNOCHandle: MNOC4-ARIN
OrgNOCName:   MontanaSky Network Opperations Center
OrgNOCPhone:  +1-406-752-4335 
OrgNOCEmail:  noc@montanasky.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/MNOC4-ARIN

OrgAbuseHandle: MNOC4-ARIN
OrgAbuseName:   MontanaSky Network Opperations Center
OrgAbusePhone:  +1-406-752-4335 
OrgAbuseEmail:  noc@montanasky.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MNOC4-ARIN

OrgTechHandle: ENDER42-ARIN
OrgTechName:   Enders, Tim 
OrgTechPhone:  +1-406-752-4335 
OrgTechEmail:  tenders@montanasky.net
OrgTechRef:    https://rdap.arin.net/registry/entity/ENDER42-ARIN

RNOCHandle: MNOC4-ARIN
RNOCName:   MontanaSky Network Opperations Center
RNOCPhone:  +1-406-752-4335 
RNOCEmail:  noc@montanasky.net
RNOCRef:    https://rdap.arin.net/registry/entity/MNOC4-ARIN

RAbuseHandle: ENDER42-ARIN
RAbuseName:   Enders, Tim 
RAbusePhone:  +1-406-752-4335 
RAbuseEmail:  tenders@montanasky.net
RAbuseRef:    https://rdap.arin.net/registry/entity/ENDER42-ARIN

RTechHandle: ENDER42-ARIN
RTechName:   Enders, Tim 
RTechPhone:  +1-406-752-4335 
RTechEmail:  tenders@montanasky.net
RTechRef:    https://rdap.arin.net/registry/entity/ENDER42-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

Peers

AS Number	Description	Country
AS20055	Wholesail networks LLC	US
AS20119	Arrow Group Inc.	CA
AS399455	IP Routing LLC	US
AS33402	Bullitt Communications	US

Upstreams

AS Number	Description	Country
AS20055	Wholesail networks LLC	US
AS20119	Arrow Group Inc.	CA

Downstreams

AS Number	Description	Country
AS399455	IP Routing LLC	US