ASN Lookup Tool

Chicago Board of Trade cmegroup.com US US 2 Routes

AS Data

AS23397

AS23397 – Chicago Board of Trade

AS Number 23397
AS Name CME-VEN-AS23397
Organization Chicago Board of Trade(cbt)
Country US
Website cmegroup.com
Number of IPv4 Routes 2
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2002-03-12

ASN Intelligence API for production workflows

Use ASN data for AS23397 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
204.10.10.0/24 256
167.204.37.0/24 256

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:       23397
ASName:         CME-VEN-AS23397
ASHandle:       AS23397
RegDate:        2002-03-12
Updated:        2021-01-27
Comment:        CME Group  
Comment:        http://cmegroup.com    
Ref:            https://rdap.arin.net/registry/autnum/23397


OrgName:        Chicago Board of Trade
OrgId:          CBT
Address:        141 West Jackson Street
Address:        Suite 901A
Address:        Network technology group
City:           Chicago
StateProv:      IL
PostalCode:     60604
Country:        US
RegDate:        1992-12-18
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/CBT


OrgTechHandle: CMEAR-ARIN
OrgTechName:   CME-ARIN-Admin
OrgTechPhone:  +1-312-627-4496 
OrgTechEmail:  NetworkEngineering@cmegroup.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CMEAR-ARIN

OrgNOCHandle: NETWO8732-ARIN
OrgNOCName:   Network Operations
OrgNOCPhone:  +1-312-627-4496 
OrgNOCEmail:  networkoperations@cmegroup.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO8732-ARIN

OrgAbuseHandle: CMEAR-ARIN
OrgAbuseName:   CME-ARIN-Admin
OrgAbusePhone:  +1-312-627-4496 
OrgAbuseEmail:  NetworkEngineering@cmegroup.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CMEAR-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
AS6461 Zayo Bandwidth US

Upstreams

AS Number Description Country
AS46887 Crown Castle Fiber LLC US
AS6461 Zayo Bandwidth US

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Frequently Asked Questions

ASN AS23397 is an Autonomous System Number used to identify a network for BGP internet routing.
AS23397 is listed under Chicago Board of Trade.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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.