ASN AS35917 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS35917?

AS35917 is listed under Tesoro Companies, 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.

AS35917 Tesoro Companies, Inc.

ASN Lookup Tool

Tesoro Companies, Inc. marathonpetroleum.com

US 7 Routes

AS Data

AS35917

AS35917 – Tesoro Companies, Inc.

AS Number	35917
AS Name	AS-ANDEAVOR
Organization	Tesoro Companies, Inc.(tpc-5)
Country	US
Website	marathonpetroleum.com
Number of IPv4 Routes	7
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2005-04-08

ASN Intelligence API for production workflows

Use ASN data for AS35917 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.192.40.0/23	AS35917	Tesoro Companies, Inc.	Tesoro Companies, Inc.	512
199.192.37.0/24	AS35917	Tesoro Companies, Inc.	Tesoro Companies, Inc.	256
199.192.38.0/24	AS35917	Tesoro Companies, Inc.	Tesoro Companies, Inc.	256
199.192.40.0/24	AS35917	Tesoro Companies, Inc.	Tesoro Companies, Inc.	256
199.192.34.0/24	AS35917	Tesoro Companies, Inc.	Tesoro Companies, Inc.	256
199.192.33.0/24	AS35917	Tesoro Companies, Inc.	Tesoro Companies, Inc.	256
63.234.214.0/24	AS35917	Tesoro Companies, Inc.	Tesoro Companies, 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:       35917
ASName:         AS-ANDEAVOR
ASHandle:       AS35917
RegDate:        2005-04-08
Updated:        2018-02-12    
Ref:            https://rdap.arin.net/registry/autnum/35917


OrgName:        Tesoro Companies, Inc.
OrgId:          TPC-5
Address:        19100 Ridgewood Parkway
City:           San Antonio
StateProv:      TX
PostalCode:     78259
Country:        US
RegDate:        1994-03-07
Updated:        2018-02-12
Ref:            https://rdap.arin.net/registry/entity/TPC-5


OrgAbuseHandle: ABUSE837-ARIN
OrgAbuseName:   ABUSE
OrgAbusePhone:  +1-210-626-6000 
OrgAbuseEmail:  enterprisenetworkservices@marathonpetroleum.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE837-ARIN

OrgTechHandle: DNSAD115-ARIN
OrgTechName:   DNS Administrator
OrgTechPhone:  +1-210-626-6000 
OrgTechEmail:  enterprisenetworkservices@marathonpetroleum.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DNSAD115-ARIN

RAbuseHandle: BLIZE-ARIN
RAbuseName:   BLIZE, JAMES 
RAbusePhone:  +1-210-626-6000 
RAbuseEmail:  jrblize@marathonpetroleum.com
RAbuseRef:    https://rdap.arin.net/registry/entity/BLIZE-ARIN

RTechHandle: BLIZE-ARIN
RTechName:   BLIZE, JAMES 
RTechPhone:  +1-210-626-6000 
RTechEmail:  jrblize@marathonpetroleum.com
RTechRef:    https://rdap.arin.net/registry/entity/BLIZE-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
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US