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AS396951 TransCanada Pipelines Limited

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

TransCanada Pipelines Limited tcenergy.com

US 1 Routes

AS Data

AS396951

AS396951 – TransCanada Pipelines Limited

AS Number	396951
AS Name	TC-EQ-DA3
Organization	TransCanada Pipelines Limited(tpl-210)
Country	US
Website	tcenergy.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2018-07-03

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Use ASN data for AS396951 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.185.105.0/24	AS396951	TransCanada Pipelines Limited	TransCanada Pipelines Limited	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:       396951
ASName:         TC-EQ-DA3
ASHandle:       AS396951
RegDate:        2018-07-03
Updated:        2018-12-10    
Ref:            https://rdap.arin.net/registry/autnum/396951


OrgName:        TransCanada Pipelines Limited
OrgId:          TPL-210
Address:        700 Louisiana Street
City:           Houston
StateProv:      TX
PostalCode:     77002-2700
Country:        US
RegDate:        2018-09-04
Updated:        2018-11-05
Ref:            https://rdap.arin.net/registry/entity/TPL-210


OrgAbuseHandle: NETWO4247-ARIN
OrgAbuseName:   Network Abuse
OrgAbusePhone:  +1-403-920-5824 
OrgAbuseEmail:  randy_taylor@tcenergy.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO4247-ARIN

OrgTechHandle: NETWO4253-ARIN
OrgTechName:   Network Operations
OrgTechPhone:  +1-403-920-6455 
OrgTechEmail:  network_data_technical@tcenergy.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO4253-ARIN

OrgNOCHandle: NETWO4253-ARIN
OrgNOCName:   Network Operations
OrgNOCPhone:  +1-403-920-6455 
OrgNOCEmail:  network_data_technical@tcenergy.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO4253-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
AS209	CenturyLink Communications, LLC	US

Upstreams

AS Number	Description	Country
AS209	CenturyLink Communications, LLC	US

Frequently Asked Questions

What is ASN AS396951?

ASN AS396951 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS396951?

AS396951 is listed under TransCanada Pipelines Limited.

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.