ASN AS10557 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS10557?

AS10557 is listed under Connect Northwest Internet Services, LLC.

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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AS10557 Connect Northwest Internet Services, LLC

ASN Lookup Tool

Connect Northwest Internet Services, LLC isomedia.com

US 103 Routes

AS Data

AS10557

AS10557 – Connect Northwest Internet Services, LLC

AS Number	10557
AS Name	CNW
Organization	Connect Northwest Internet Services, LLC(cnisl)
Country	US
Website	isomedia.com
Number of IPv4 Routes	103
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	1997-09-12

ASN Intelligence API for production workflows

Use ASN data for AS10557 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
45.38.252.0/24	AS10557	Connect Northwest Internet Services, LLC	EGIHosting	256
194.110.210.0/24	AS10557	Connect Northwest Internet Services, LLC	UAB code	256
142.252.146.0/24	AS10557	Connect Northwest Internet Services, LLC	EGIHosting	256
195.38.0.0/23	AS10557	Connect Northwest Internet Services, LLC	Isomedia, Inc.	512
87.120.62.0/24	AS10557	Connect Northwest Internet Services, LLC	UAB code	256
2.56.20.0/23	AS10557	Connect Northwest Internet Services, LLC	Isomedia, Inc.	512
104.252.177.0/24	AS10557	Connect Northwest Internet Services, LLC	Gatech Proxy	256
5.252.248.0/22	AS10557	Connect Northwest Internet Services, LLC	DE ISOMEDIA	1024
23.27.19.0/24	AS10557	Connect Northwest Internet Services, LLC	Ace Data Centers II, L.L.C.	256
203.78.163.0/24	AS10557	Connect Northwest Internet Services, LLC	Connect Northwest Internet Services, LLC	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:       10557
ASName:         CNW
ASHandle:       AS10557
RegDate:        1997-09-12
Updated:        2020-04-20    
Ref:            https://rdap.arin.net/registry/autnum/10557


OrgName:        Connect Northwest Internet Services, LLC
OrgId:          CNISL
Address:        PO Box 58288
City:           Seattle
StateProv:      WA
PostalCode:     98138-2228
Country:        US
RegDate:        1997-09-12
Updated:        2025-02-03
Ref:            https://rdap.arin.net/registry/entity/CNISL


OrgDNSHandle: DNSAD104-ARIN
OrgDNSName:   DNS Admin
OrgDNSPhone:  +1-425-605-5700 
OrgDNSEmail:  arin-noc-poc@isomedia.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/DNSAD104-ARIN

OrgNOCHandle: DNSAD104-ARIN
OrgNOCName:   DNS Admin
OrgNOCPhone:  +1-425-605-5700 
OrgNOCEmail:  arin-noc-poc@isomedia.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/DNSAD104-ARIN

OrgRoutingHandle: DNSAD104-ARIN
OrgRoutingName:   DNS Admin
OrgRoutingPhone:  +1-425-605-5700 
OrgRoutingEmail:  arin-noc-poc@isomedia.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DNSAD104-ARIN

OrgTechHandle: NOCAD123-ARIN
OrgTechName:   NOC Administrators
OrgTechPhone:  +1-253-830-2943 
OrgTechEmail:  isofusion-arin@isofusion.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOCAD123-ARIN

OrgAbuseHandle: DNSAD104-ARIN
OrgAbuseName:   DNS Admin
OrgAbusePhone:  +1-425-605-5700 
OrgAbuseEmail:  arin-noc-poc@isomedia.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DNSAD104-ARIN

RTechHandle: SM362-ARIN
RTechName:   Milton, Steve 
RTechPhone:  +1-425-605-5700 
RTechEmail:  arin-admin@isomedia.com
RTechRef:    https://rdap.arin.net/registry/entity/SM362-ARIN

RAbuseHandle: SM362-ARIN
RAbuseName:   Milton, Steve 
RAbusePhone:  +1-425-605-5700 
RAbuseEmail:  arin-admin@isomedia.com
RAbuseRef:    https://rdap.arin.net/registry/entity/SM362-ARIN

RNOCHandle: SM362-ARIN
RNOCName:   Milton, Steve 
RNOCPhone:  +1-425-605-5700 
RNOCEmail:  arin-admin@isomedia.com
RNOCRef:    https://rdap.arin.net/registry/entity/SM362-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
AS18530	Isomedia, Inc.	US

Upstreams

AS Number	Description	Country
AS18530	Isomedia, Inc.	US