IPv4 Network

172.83.72.0/21

Name: IPv4 network 172.83.72.0/21
Creator: DCXV
Keywords: IPv4 network, 172.83.72.0/21, TUL-7, ARIN, US

🇺🇸 Owner: TUL-7 · ARIN

172.83.72.0/21 is registered to TUL-7 (US) via ARIN. Look up the owning organisation and its other IPv4 networks.

Network	172.83.72.0/21
Organisation	TUL-7
Org handle	MNT-TUL-7
Registry	🇺🇸 ARIN (US)

All networks of this org → Transfers via ARIN →

Raw WHOIS data

#
# 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.
#



# start

NetRange:       172.83.72.0 - 172.83.79.255
CIDR:           172.83.72.0/21
NetName:        TUL-7
NetHandle:      NET-172-83-72-0-1
Parent:         NET172 (NET-172-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Trans Union, LLC (TUL-7)
RegDate:        2022-03-30
Updated:        2024-11-07
Comment:        As of May 12, 2022, this address is announced by CloudFlare pursuant to a Letter of Agency on file with CloudFlare.
Comment:        
Comment:         
Ref:            https://rdap.arin.net/registry/ip/172.83.72.0


OrgName:        Trans Union, LLC
OrgId:          TUL-7
Address:        555 W. Adams
City:           Chicago
StateProv:      IL
PostalCode:     60661
Country:        US
RegDate:        2007-06-06
Updated:        2026-06-30
Ref:            https://rdap.arin.net/registry/entity/TUL-7


OrgTechHandle: NETWO10022-ARIN
OrgTechName:   Network Operations
OrgTechPhone:  +1-312-985-4362 
OrgTechEmail:  PDLNETWORKOPS@transunion.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO10022-ARIN

OrgTechHandle: TIEDE6-ARIN
OrgTechName:   Tiedemann, Eric 
OrgTechPhone:  +1-833-806-1627 
OrgTechEmail:  eric.tiedemann@transunion.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TIEDE6-ARIN

OrgAbuseHandle: GOC10-ARIN
OrgAbuseName:   GOC
OrgAbusePhone:  +1-312-985-4362 
OrgAbuseEmail:  GOC@transunion.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GOC10-ARIN

OrgTechHandle: CALDE247-ARIN
OrgTechName:   Calderon, Andrey 
OrgTechPhone:  +1-888-888-8888 
OrgTechEmail:  andrey.calderon@transunion.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CALDE247-ARIN

OrgAbuseHandle: NETWO10022-ARIN
OrgAbuseName:   Network Operations
OrgAbusePhone:  +1-312-985-4362 
OrgAbuseEmail:  PDLNETWORKOPS@transunion.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO10022-ARIN

OrgTechHandle: PLATT78-ARIN
OrgTechName:   Platt, Daniel 
OrgTechPhone:  +1-833-806-1627 
OrgTechEmail:  daniel.platt@transunion.com
OrgTechRef:    https://rdap.arin.net/registry/entity/PLATT78-ARIN

OrgTechHandle: TIQ-ARIN
OrgTechName:   Iqbal, Tariq 
OrgTechPhone:  +1-773-858-8166 
OrgTechEmail:  tiqbal@transunion.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TIQ-ARIN

# end



#
# 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.
#

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