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.

AS33100 DHR INTERNATIONAL | 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

DHR INTERNATIONAL dhrglobal.com

US 1 Routes

AS Data

AS33100

AS33100 – DHR INTERNATIONAL

AS Number	33100
AS Name	DHR-INTERNATIONAL
Organization	DHR INTERNATIONAL(dhrin-1)
Country	US
Website	dhrglobal.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2004-10-01

ASN Intelligence API for production workflows

Use ASN data for AS33100 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
38.101.94.0/24	AS33100	DHR INTERNATIONAL	DHR International	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:       33100
ASName:         DHR-INTERNATIONAL
ASHandle:       AS33100
RegDate:        2004-10-01
Updated:        2020-12-16    
Ref:            https://rdap.arin.net/registry/autnum/33100


OrgName:        DHR INTERNATIONAL
OrgId:          DHRIN-1
Address:        71 South Wacker Drive, Suite 2700
City:           Chicago
StateProv:      IL
PostalCode:     60606
Country:        US
RegDate:        2004-02-12
Updated:        2023-09-10
Ref:            https://rdap.arin.net/registry/entity/DHRIN-1


OrgAbuseHandle: DTS36-ARIN
OrgAbuseName:   DHR Technical Services
OrgAbusePhone:  +1-312-782-1581 
OrgAbuseEmail:  support@dhrglobal.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DTS36-ARIN

OrgTechHandle: NOC1502-ARIN
OrgTechName:   NOC
OrgTechPhone:  +1-866-558-1920 
OrgTechEmail:  s.noc@gls.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC1502-ARIN

OrgNOCHandle: DTS36-ARIN
OrgNOCName:   DHR Technical Services
OrgNOCPhone:  +1-312-782-1581 
OrgNOCEmail:  support@dhrglobal.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/DTS36-ARIN

RTechHandle: DTS36-ARIN
RTechName:   DHR Technical Services
RTechPhone:  +1-312-782-1581 
RTechEmail:  support@dhrglobal.com
RTechRef:    https://rdap.arin.net/registry/entity/DTS36-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
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS174	Cogent Communications, LLC	US

Frequently Asked Questions

What is ASN AS33100?

ASN AS33100 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS33100?

AS33100 is listed under DHR INTERNATIONAL.

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.