ASN AS5771 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS5771?

AS5771 is listed under Alaska Communications Systems 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?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS5771 Alaska Communications Systems Group, Inc.

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Legacy Routes

Alaska Communications Systems Group, Inc. acsalaska.net

US 0 Routes

AS Data

AS5771

AS5771 – Alaska Communications Systems Group, Inc.

AS Number	5771
AS Name	ALSK-5771
Organization	Alaska Communications Systems Group, Inc.(acsg-1)
Country	US
Website	acsalaska.net
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	1995-10-12

ASN Intelligence API for production workflows

Use ASN data for AS5771 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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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:       5771
ASName:         ALSK-5771
ASHandle:       AS5771
RegDate:        1995-10-12
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/5771


OrgName:        Alaska Communications Systems Group, Inc.
OrgId:          ACSG-1
Address:        c/o ACS Internet, Inc.
Address:        600 Telephone Ave.
City:           Anchorage
StateProv:      AK
PostalCode:     99503
Country:        US
RegDate:        2004-02-24
Updated:        2023-11-15
Ref:            https://rdap.arin.net/registry/entity/ACSG-1

ReferralServer:  rwhois://rwhois.acsalaska.net:4321

OrgAbuseHandle: AIA4-ARIN
OrgAbuseName:   ACS Internet - Abuse
OrgAbusePhone:  +1-907-273-6898 
OrgAbuseEmail:  abuse@acsalaska.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AIA4-ARIN

OrgDNSHandle: AIA5-ARIN
OrgDNSName:   ACS Internet - Admin
OrgDNSPhone:  +1-907-273-6800 
OrgDNSEmail:  sys.admin@acsalaska.net
OrgDNSRef:    https://rdap.arin.net/registry/entity/AIA5-ARIN

OrgNOCHandle: AIN5-ARIN
OrgNOCName:   ACS Internet - NOC
OrgNOCPhone:  +1-907-273-6800 
OrgNOCEmail:  i-ops@acsalaska.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/AIN5-ARIN

OrgTechHandle: AIA5-ARIN
OrgTechName:   ACS Internet - Admin
OrgTechPhone:  +1-907-273-6800 
OrgTechEmail:  sys.admin@acsalaska.net
OrgTechRef:    https://rdap.arin.net/registry/entity/AIA5-ARIN

OrgNOCHandle: AIA5-ARIN
OrgNOCName:   ACS Internet - Admin
OrgNOCPhone:  +1-907-273-6800 
OrgNOCEmail:  sys.admin@acsalaska.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/AIA5-ARIN

OrgTechHandle: AIT5-ARIN
OrgTechName:   ACS Internet - Tech
OrgTechPhone:  +1-907-273-6800 
OrgTechEmail:  dnsadmin@acsalaska.net
OrgTechRef:    https://rdap.arin.net/registry/entity/AIT5-ARIN

OrgAbuseHandle: AIA5-ARIN
OrgAbuseName:   ACS Internet - Admin
OrgAbusePhone:  +1-907-273-6800 
OrgAbuseEmail:  sys.admin@acsalaska.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AIA5-ARIN

OrgRoutingHandle: AIA5-ARIN
OrgRoutingName:   ACS Internet - Admin
OrgRoutingPhone:  +1-907-273-6800 
OrgRoutingEmail:  sys.admin@acsalaska.net
OrgRoutingRef:    https://rdap.arin.net/registry/entity/AIA5-ARIN

OrgTechHandle: ZA76-ARIN
OrgTechName:   Ipnetops
OrgTechPhone:  +1-503-466-8505 
OrgTechEmail:  ipnetops@wcicable.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZA76-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.
#