ASN AS36673 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS36673?

AS36673 is listed under Vectren Utility Holdings, 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.

AS36673 Vectren Utility Holdings, Inc.

ASN Lookup Tool

Vectren Utility Holdings, Inc. centerpointenergy.com

US 6 Routes

AS Data

AS36673

AS36673 – Vectren Utility Holdings, Inc.

AS Number	36673
AS Name	VECTREN63-64-13-1
Organization	Vectren Utility Holdings, Inc.(vuh)
Country	US
Website	centerpointenergy.com
Number of IPv4 Routes	6
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2006-03-15

ASN Intelligence API for production workflows

Use ASN data for AS36673 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

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.51.125.0/24	AS36673	Vectren Utility Holdings, Inc.	Southern Indiana Gas & Electric Company	256
198.51.128.0/24	AS36673	Vectren Utility Holdings, Inc.	Southern Indiana Gas & Electric Company	256
198.51.127.0/24	AS36673	Vectren Utility Holdings, Inc.	Southern Indiana Gas & Electric Company	256
71.155.218.0/24	AS36673	Vectren Utility Holdings, Inc.	AT&T Enterprises, LLC	256
198.51.126.0/24	AS36673	Vectren Utility Holdings, Inc.	Southern Indiana Gas & Electric Company	256
198.17.11.0/24	AS36673	Vectren Utility Holdings, Inc.	Vectren Utility Holdings, Inc.	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:       36673
ASName:         VECTREN63-64-13-1
ASHandle:       AS36673
RegDate:        2006-03-15
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/36673


OrgName:        Vectren Utility Holdings, Inc.
OrgId:          VUH
Address:        100 N Governor St
Address:        Telecommunications Dept
City:           Evansville
StateProv:      IN
PostalCode:     47711
Country:        US
RegDate:        2006-03-07
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/VUH


OrgAbuseHandle: NETWO1044-ARIN
OrgAbuseName:   Networking Department
OrgAbusePhone:  +1-812-491-4123 
OrgAbuseEmail:  wanteam@centerpointenergy.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO1044-ARIN

OrgTechHandle: NETWO1044-ARIN
OrgTechName:   Networking Department
OrgTechPhone:  +1-812-491-4123 
OrgTechEmail:  wanteam@centerpointenergy.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO1044-ARIN

RTechHandle: NETWO1044-ARIN
RTechName:   Networking Department
RTechPhone:  +1-812-491-4123 
RTechEmail:  wanteam@centerpointenergy.com
RTechRef:    https://rdap.arin.net/registry/entity/NETWO1044-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
AS7018	AT&T Enterprises, LLC	US
AS6079	RCN	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS6079	RCN	US