What is ASN AS399361?

ASN AS399361 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399361?

AS399361 is listed under Alcoa USA Corp..

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.

AS399361 Alcoa USA Corp. | IPGeolocation.io

ASN Lookup Tool

Alcoa USA Corp. alcoa.com

US 8 Routes

AS Data

AS399361

AS399361 – Alcoa USA Corp.

AS Number	399361
AS Name	ALCOA-CORP
Organization	Alcoa USA Corp.(auc-68)
Country	US
Website	alcoa.com
Number of IPv4 Routes	8
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2021-02-17

ASN Intelligence API for production workflows

Use ASN data for AS399361 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
142.79.180.0/23	AS399361	Alcoa USA Corp.	Alcoa USA Corp.	512
142.79.179.0/24	AS399361	Alcoa USA Corp.	Alcoa USA Corp.	256
142.79.177.0/24	AS399361	Alcoa USA Corp.	Alcoa USA Corp.	256
142.79.182.0/23	AS399361	Alcoa USA Corp.	Alcoa USA Corp.	512
142.79.176.0/23	AS399361	Alcoa USA Corp.	Alcoa USA Corp.	512
142.79.180.0/24	AS399361	Alcoa USA Corp.	Alcoa USA Corp.	256
142.79.178.0/23	AS399361	Alcoa USA Corp.	Alcoa USA Corp.	512
142.79.182.0/24	AS399361	Alcoa USA Corp.	Alcoa USA Corp.	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:       399361
ASName:         ALCOA-CORP
ASHandle:       AS399361
RegDate:        2021-02-17
Updated:        2021-02-17    
Ref:            https://rdap.arin.net/registry/autnum/399361


OrgName:        Alcoa USA Corp.
OrgId:          AUC-68
Address:        201 Isabella St.
City:           Pittsburgh
StateProv:      PA
PostalCode:     15212
Country:        US
RegDate:        2016-05-09
Updated:        2021-02-09
Ref:            https://rdap.arin.net/registry/entity/AUC-68


OrgTechHandle: ZA122-ARIN
OrgTechName:   Alcoa
OrgTechPhone:  +1-412-315-2900 
OrgTechEmail:  ip.address@alcoa.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZA122-ARIN

OrgAbuseHandle: COPEL173-ARIN
OrgAbuseName:   Copeland, Daniel 
OrgAbusePhone:  +1-724-393-3283 
OrgAbuseEmail:  daniel.copeland@alcoa.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/COPEL173-ARIN

OrgTechHandle: COPEL173-ARIN
OrgTechName:   Copeland, Daniel 
OrgTechPhone:  +1-724-393-3283 
OrgTechEmail:  daniel.copeland@alcoa.com
OrgTechRef:    https://rdap.arin.net/registry/entity/COPEL173-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
AS1221	Telstra Limited	AU
AS1239	Cogent Communications, LLC	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS1221	Telstra Limited	AU
AS174	Cogent Communications, LLC	US