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AS397975 Realnets | 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

Realnets realnets.com

US 2 Routes

AS Data

AS397975

AS397975 – Realnets

AS Number	397975
AS Name	BRITEFISH-01
Organization	Realnets(rns-37)
Country	US
Website	realnets.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2019-09-24

ASN Intelligence API for production workflows

Use ASN data for AS397975 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
216.24.43.0/24	AS397975	Realnets	Realnets	256
209.242.39.0/24	AS397975	Realnets	REALNETS / Chicago COLO	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:       397975
ASName:         BRITEFISH-01
ASHandle:       AS397975
RegDate:        2019-09-24
Updated:        2019-09-24
Comment:        www.realnets.com    
Ref:            https://rdap.arin.net/registry/autnum/397975


OrgName:        Realnets
OrgId:          RNS-37
Address:        100 Higgins Road
Address:        Suite 100
City:           Park Ridge
StateProv:      IL
PostalCode:     60068
Country:        US
RegDate:        2014-06-25
Updated:        2025-12-19
Comment:        http://www.realnets.com
Comment:        773-631-6851
Ref:            https://rdap.arin.net/registry/entity/RNS-37


OrgAbuseHandle: COELH23-ARIN
OrgAbuseName:   Coelho, Mark 
OrgAbusePhone:  +1-773-631-6851 
OrgAbuseEmail:  mcoelho@realnets.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/COELH23-ARIN

OrgTechHandle: COELH23-ARIN
OrgTechName:   Coelho, Mark 
OrgTechPhone:  +1-773-631-6851 
OrgTechEmail:  mcoelho@realnets.com
OrgTechRef:    https://rdap.arin.net/registry/entity/COELH23-ARIN

OrgTechHandle: JPD46-ARIN
OrgTechName:   Driscoll, Jeremy P
OrgTechPhone:  +1-773-631-6851 
OrgTechEmail:  jdriscoll@realnets.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JPD46-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
AS10692	DLS Internet Services, Inc	US

Upstreams

AS Number	Description	Country
AS10692	DLS Internet Services, Inc	US

Frequently Asked Questions

What is ASN AS397975?

ASN AS397975 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS397975?

AS397975 is listed under Realnets.

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.