What is ASN AS393667?

ASN AS393667 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS393667?

AS393667 is listed under Farsight Security, 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.

AS393667 Farsight Security, Inc

ASN Lookup Tool

Farsight Security, Inc fsi.io

US 6 Routes

AS Data

AS393667

AS393667 – Farsight Security, Inc

AS Number	393667
AS Name	FARSIGHT
Organization	Farsight Security, Inc(fs-229)
Country	US
Website	fsi.io
Number of IPv4 Routes	3
Number of IPv6 Routes	3
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2014-10-22

ASN Intelligence API for production workflows

Use ASN data for AS393667 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2620:11c:f004::/48	AS393667	Farsight Security, Inc	Farsight Security, Inc	~1×10²⁴
104.244.14.0/24	AS393667	Farsight Security, Inc	Farsight Security, Inc	256
104.244.13.0/24	AS393667	Farsight Security, Inc	Farsight Security, Inc	256
2620:11c:f00d::/48	AS393667	Farsight Security, Inc	Farsight Security, Inc	~1×10²⁴
2620:11c:f008::/48	AS393667	Farsight Security, Inc	Farsight Security, Inc	~1×10²⁴
192.160.237.0/24	AS393667	Farsight Security, Inc	Farsight Security, 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:       393667
ASName:         FARSIGHT
ASHandle:       AS393667
RegDate:        2014-10-22
Updated:        2014-10-22
Comment:        http://www.farsightsecurity.com    
Ref:            https://rdap.arin.net/registry/autnum/393667


OrgName:        Farsight Security, Inc
OrgId:          FS-229
Address:        177 Bovet Road, #180
City:           San Mateo
StateProv:      CA
PostalCode:     94402
Country:        US
RegDate:        2014-10-10
Updated:        2025-10-10
Comment:        https://www.farsightsecurity.com/
Ref:            https://rdap.arin.net/registry/entity/FS-229


OrgTechHandle: OPERA500-ARIN
OrgTechName:   Operations
OrgTechPhone:  +1-206-838-9020 
OrgTechEmail:  acct-arin@fsi.io
OrgTechRef:    https://rdap.arin.net/registry/entity/OPERA500-ARIN

OrgNOCHandle: OPERA500-ARIN
OrgNOCName:   Operations
OrgNOCPhone:  +1-206-838-9020 
OrgNOCEmail:  acct-arin@fsi.io
OrgNOCRef:    https://rdap.arin.net/registry/entity/OPERA500-ARIN

OrgAbuseHandle: OPERA500-ARIN
OrgAbuseName:   Operations
OrgAbusePhone:  +1-206-838-9020 
OrgAbuseEmail:  acct-arin@fsi.io
OrgAbuseRef:    https://rdap.arin.net/registry/entity/OPERA500-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
AS1239	Cogent Communications, LLC	US
AS2914	NTT America, Inc.	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS2914	NTT America, Inc.	US
AS174	Cogent Communications, LLC	US

Legacy Routes

205.166.146.0/24