ASN AS20390 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS20390?

AS20390 is listed under Feith Systems and Software, 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?

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AS20390 Feith Systems and Software, Inc.

ASN Lookup Tool

Feith Systems and Software, Inc. feith.com

US 1 Routes

AS Data

AS20390

AS20390 – Feith Systems and Software, Inc.

AS Number	20390
AS Name	FSS
Organization	Feith Systems and Software, Inc.(fss)
Country	US
Website	feith.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2001-05-01

ASN Intelligence API for production workflows

Use ASN data for AS20390 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.251.93.0/24	AS20390	Feith Systems and Software, Inc.	Feith Systems and Software, 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:       20390
ASName:         FSS
ASHandle:       AS20390
RegDate:        2001-05-01
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/20390


OrgName:        Feith Systems and Software, Inc.
OrgId:          FSS
Address:        425 Maryland Drive
City:           Fort Washington
StateProv:      PA
PostalCode:     19034
Country:        US
RegDate:        1992-11-25
Updated:        2023-09-26
Ref:            https://rdap.arin.net/registry/entity/FSS


OrgAbuseHandle: FRIED202-ARIN
OrgAbuseName:   Friedrich, Larry 
OrgAbusePhone:  +1-215-646-8000 
OrgAbuseEmail:  lfriedrich@feith.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/FRIED202-ARIN

OrgAbuseHandle: JLW44-ARIN
OrgAbuseName:   Wehle, John 
OrgAbusePhone:  +1-215-646-8000 
OrgAbuseEmail:  john@feith.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/JLW44-ARIN

OrgTechHandle: FRIED202-ARIN
OrgTechName:   Friedrich, Larry 
OrgTechPhone:  +1-215-646-8000 
OrgTechEmail:  lfriedrich@feith.com
OrgTechRef:    https://rdap.arin.net/registry/entity/FRIED202-ARIN

OrgTechHandle: JLW44-ARIN
OrgTechName:   Wehle, John 
OrgTechPhone:  +1-215-646-8000 
OrgTechEmail:  john@feith.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JLW44-ARIN

RTechHandle: JLW44-ARIN
RTechName:   Wehle, John 
RTechPhone:  +1-215-646-8000 
RTechEmail:  john@feith.com
RTechRef:    https://rdap.arin.net/registry/entity/JLW44-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
AS33287	Comcast Cable Communications, LLC	US
AS33659	Comcast Cable Communications, LLC	US

Upstreams

AS Number	Description	Country
AS33287	Comcast Cable Communications, LLC	US
AS33659	Comcast Cable Communications, LLC	US