ASN AS21541 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21541?

AS21541 is listed under 101Netlink.

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.

AS21541 101Netlink | IPGeolocation.io

ASN Lookup Tool

101Netlink 101netlink.com

US 19 Routes

AS Data

AS21541

AS21541 – 101Netlink

AS Number	21541
AS Name	101NETLINK
Organization	101Netlink(norma-5)
Country	US
Website	101netlink.com
Number of IPv4 Routes	19
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2006-10-10

ASN Intelligence API for production workflows

Use ASN data for AS21541 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
64.194.68.0/24	AS21541	101Netlink	101Netlink	256
64.194.160.0/23	AS21541	101Netlink	101Netlink	512
64.194.64.0/21	AS21541	101Netlink	101Netlink	2048
64.194.165.0/24	AS21541	101Netlink	101Netlink	256
64.194.163.0/24	AS21541	101Netlink	101Netlink	256
64.195.221.0/24	AS21541	101Netlink	101Netlink	256
208.186.58.0/24	AS21541	101Netlink	101Netlink	256
64.194.166.0/23	AS21541	101Netlink	101Netlink	512
64.194.71.0/24	AS21541	101Netlink	101Netlink	256
208.186.56.0/24	AS21541	101Netlink	101Netlink	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:       21541
ASName:         101NETLINK
ASHandle:       AS21541
RegDate:        2006-10-10
Updated:        2012-03-02
Comment:        SJo71-ARIN    
Ref:            https://rdap.arin.net/registry/autnum/21541


OrgName:        101Netlink
OrgId:          NORMA-5
Address:        P.O. Box 101
City:           Whitethorn
StateProv:      CA
PostalCode:     95589
Country:        US
RegDate:        2006-10-06
Updated:        2010-06-22
Ref:            https://rdap.arin.net/registry/entity/NORMA-5


OrgNOCHandle: SJO71-ARIN
OrgNOCName:   Johannesen, Seth 
OrgNOCPhone:  +1-707-923-4000 
OrgNOCEmail:  seth@101netlink.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/SJO71-ARIN

OrgAbuseHandle: SJO71-ARIN
OrgAbuseName:   Johannesen, Seth 
OrgAbusePhone:  +1-707-923-4000 
OrgAbuseEmail:  seth@101netlink.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SJO71-ARIN

OrgTechHandle: SJO71-ARIN
OrgTechName:   Johannesen, Seth 
OrgTechPhone:  +1-707-923-4000 
OrgTechEmail:  seth@101netlink.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SJO71-ARIN

RAbuseHandle: SJO71-ARIN
RAbuseName:   Johannesen, Seth 
RAbusePhone:  +1-707-923-4000 
RAbuseEmail:  seth@101netlink.com
RAbuseRef:    https://rdap.arin.net/registry/entity/SJO71-ARIN

RNOCHandle: SJO71-ARIN
RNOCName:   Johannesen, Seth 
RNOCPhone:  +1-707-923-4000 
RNOCEmail:  seth@101netlink.com
RNOCRef:    https://rdap.arin.net/registry/entity/SJO71-ARIN

RTechHandle: SJO71-ARIN
RTechName:   Johannesen, Seth 
RTechPhone:  +1-707-923-4000 
RTechEmail:  seth@101netlink.com
RTechRef:    https://rdap.arin.net/registry/entity/SJO71-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
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS19245	Hoopa Valley Public Utilities District	US
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US

Downstreams

AS Number	Description	Country
AS19245	Hoopa Valley Public Utilities District	US