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AS400527 Proponent | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

Proponent proponent.com

US 1 Routes

AS Data

AS400527

AS400527 – Proponent

AS Number	400527
AS Name	AS-PROPONENT
Organization	Proponent(kap-57)
Country	US
Website	proponent.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2022-03-16

ASN Intelligence API for production workflows

Use ASN data for AS400527 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.74.205.0/24	AS400527	Proponent	Proponent	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:       400527
ASName:         AS-PROPONENT
ASHandle:       AS400527
RegDate:        2022-03-16
Updated:        2022-03-16    
Ref:            https://rdap.arin.net/registry/autnum/400527


OrgName:        Proponent
OrgId:          KAP-57
Address:        3120 Enterprise Street
City:           Brea
StateProv:      CA
PostalCode:     92821
Country:        US
RegDate:        2022-01-04
Updated:        2024-08-31
Ref:            https://rdap.arin.net/registry/entity/KAP-57


OrgTechHandle: BAKER470-ARIN
OrgTechName:   Baker, Fred 
OrgTechPhone:  +1-714-223-5443 
OrgTechEmail:  fbaker@proponent.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BAKER470-ARIN

OrgAbuseHandle: BAKER470-ARIN
OrgAbuseName:   Baker, Fred 
OrgAbusePhone:  +1-714-223-5443 
OrgAbuseEmail:  fbaker@proponent.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BAKER470-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
AS46887	Crown Castle Fiber LLC	US
AS7018	AT&T Enterprises, LLC	US

Upstreams

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS7018	AT&T Enterprises, LLC	US

Frequently Asked Questions

What is ASN AS400527?

ASN AS400527 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS400527?

AS400527 is listed under Proponent.

What do peers, upstreams, and downstreams mean?

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 included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.