What is ASN AS399523?

ASN AS399523 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399523?

AS399523 is listed under Equitrans Midstream Corporation.

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.

AS399523 Equitrans Midstream Corporation

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AS399523

AS399523 – Equitrans Midstream Corporation

AS Number	399523
AS Name	ETRN-ASN-01
Organization	Equitrans Midstream Corporation(emc-209)
Country	US
Website	equitransmidstream.com
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2021-04-05

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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:       399523
ASName:         ETRN-ASN-01
ASHandle:       AS399523
RegDate:        2021-04-05
Updated:        2021-04-05
Comment:        Equitrans Midstream Corporation
Comment:        http://www.equitransmidstream.com    
Ref:            https://rdap.arin.net/registry/autnum/399523


OrgName:        Equitrans Midstream Corporation
OrgId:          EMC-209
Address:        2200 Energy Drive
City:           Canonsburg
StateProv:      PA
PostalCode:     15317
Country:        US
RegDate:        2020-07-28
Updated:        2022-02-02
Comment:        https://www.equitransmidstream.com
Ref:            https://rdap.arin.net/registry/entity/EMC-209


OrgTechHandle: NORTH106-ARIN
OrgTechName:   Northcutt, Dean 
OrgTechPhone:  +1-412-216-2532 
OrgTechEmail:  dnorthcutt@equitransmidstream.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NORTH106-ARIN

OrgRoutingHandle: NORTH106-ARIN
OrgRoutingName:   Northcutt, Dean 
OrgRoutingPhone:  +1-412-216-2532 
OrgRoutingEmail:  dnorthcutt@equitransmidstream.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NORTH106-ARIN

OrgAbuseHandle: NORTH106-ARIN
OrgAbuseName:   Northcutt, Dean 
OrgAbusePhone:  +1-412-216-2532 
OrgAbuseEmail:  dnorthcutt@equitransmidstream.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NORTH106-ARIN

OrgNOCHandle: NORTH106-ARIN
OrgNOCName:   Northcutt, Dean 
OrgNOCPhone:  +1-412-216-2532 
OrgNOCEmail:  dnorthcutt@equitransmidstream.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NORTH106-ARIN

OrgDNSHandle: MERED40-ARIN
OrgDNSName:   Meredith, Doug 
OrgDNSPhone:  +1-412-395-3627 
OrgDNSEmail:  dmeredith@equitransmidstream.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/MERED40-ARIN

OrgDNSHandle: NORTH106-ARIN
OrgDNSName:   Northcutt, Dean 
OrgDNSPhone:  +1-412-216-2532 
OrgDNSEmail:  dnorthcutt@equitransmidstream.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/NORTH106-ARIN

OrgTechHandle: SANDE661-ARIN
OrgTechName:   Sanders, Curtis 
OrgTechPhone:  +1-412-395-3211 
OrgTechEmail:  csanders@equitransmidstream.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SANDE661-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.
#

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AS399523 – Equitrans Midstream Corporation

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