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.

AS26543 IBM | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

IBM us.ibm.com

US 1 Routes

AS Data

AS26543

AS26543 – IBM

AS Number	26543
AS Name	IBM-CMS-RPL
Organization	IBM(ibm-1)
Country	US
Website	us.ibm.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2002-10-14

ASN Intelligence API for production workflows

Use ASN data for AS26543 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.86.64.0/23	AS26543	IBM	IBM	512

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:       26543
ASName:         IBM-CMS-RPL
ASHandle:       AS26543
RegDate:        2002-10-14
Updated:        2016-03-01    
Ref:            https://rdap.arin.net/registry/autnum/26543


OrgName:        IBM
OrgId:          IBM-1
Address:        3039 Cornwallis Road
City:           Research Triangle Park
StateProv:      NC
PostalCode:     27709-2195
Country:        US
RegDate:        1992-02-08
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/IBM-1


OrgTechHandle: RAIN-ARIN
OrgTechName:   Registrar Authority, Internet numbers
OrgTechPhone:  +1-800-426-7378 
OrgTechEmail:  ipreg@us.ibm.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RAIN-ARIN

OrgAbuseHandle: RAIN-ARIN
OrgAbuseName:   Registrar Authority, Internet numbers
OrgAbusePhone:  +1-800-426-7378 
OrgAbuseEmail:  ipreg@us.ibm.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RAIN-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
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US

Frequently Asked Questions

What is ASN AS26543?

ASN AS26543 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS26543?

AS26543 is listed under IBM.

What do peers, upstreams, and downstreams mean?

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 included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.