1. All IP Ranges
  2. 66.0.0.0/8
  3. 66.175.0.0/16
  4. AS19353  | 66.175.242.0/23

66.175.242.0/23

AS19353  ·  Trans Union, LLC

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Summary

Country United States
Domain transunion.com
ASN AS19353
Registry ARIN
ID TU555WADAMS

WHOIS Details

NetHandle:      NET-66-175-240-0-1
OrgID:          TUL-7
Parent:         NET-66-0-0-0-0
NetName:        TU555WADAMS
NetRange:       66.175.240.0 - 66.175.255.255
NetType:        allocation
RegDate:        2007-08-10
Updated:        2021-12-14
Source:         ARIN


OrgID:          TUL-7
OrgName:        Trans Union, LLC
CanAllocate:    
Street:         555 W. Adams
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60661
RegDate:        2007-06-06
Updated:        2026-03-11
OrgAdminHandle: TIQ-ARIN
OrgTechHandle:  CALDE247-ARIN
OrgTechHandle:  NETWO10022-ARIN
OrgTechHandle:  PLATT78-ARIN
OrgTechHandle:  TIQ-ARIN
OrgAbuseHandle: GOC10-ARIN
OrgAbuseHandle: NETWO10022-ARIN
Source:         ARIN


POCHandle:      GOC10-ARIN
IsRole:         Y
LastName:       GOC
FirstName:      
Street:         555 W. Adams
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60661
RegDate:        2024-01-09
Updated:        2025-08-05
OfficePhone:    +1-312-985-4362
Mailbox:        GOC@transunion.com
Source:         ARIN


POCHandle:      NETWO10022-ARIN
IsRole:         Y
LastName:       Network Operations
FirstName:      
Street:         555 W. Adams
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60661
RegDate:        2024-01-09
Updated:        2025-01-08
OfficePhone:    +1-312-985-4362
Mailbox:        PDLNETWORKOPS@transunion.com
Source:         ARIN


POCHandle:      TIQ-ARIN
IsRole:         N
LastName:       Iqbal
FirstName:      Tariq
Street:         555 W. Adams
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60661
RegDate:        2007-06-06
Updated:        2025-01-08
OfficePhone:    +1-312-985-3889
MobilePhone:    +1-773-858-8166
Mailbox:        tiqbal@transunion.com
Source:         ARIN


POCHandle:      CALDE247-ARIN
IsRole:         N
LastName:       Calderon
FirstName:      Andrey
Street:         555 W Adams St
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60661
RegDate:        2025-08-05
Updated:        2025-08-05
OfficePhone:    +1-888-888-8888
Mailbox:        andrey.calderon@transunion.com
Source:         ARIN


POCHandle:      PLATT78-ARIN
IsRole:         N
LastName:       Platt
FirstName:      Daniel
Street:         11955 Democracy Drive
Street:         16th Floor
City:           Reston
State/Prov:     VA
Country:        US
PostalCode:     20190
RegDate:        2026-02-20
Updated:        2026-02-20
OfficePhone:    +1-833-806-1627
Mailbox:        daniel.platt@transunion.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 66.175.0.0/16

Range ASN Company Num of IPs
66.175.128.0/18 AS11272 C Spire Fiber 16,384
66.175.0.0/18 AS30447 Internet Names For Business Inc. 16,384
66.175.96.0/19 AS701 Verizon Business 8,192
66.175.64.0/19 AS21686 Hawaiian Telcom Services Company, Inc. 8,192
66.175.192.0/20 AS26785 Netwurx LLC 4,096
66.175.224.0/21 AS11900 Datacruz, Inc. 2,048
66.175.232.0/21 AS8560 IONOS Inc. 2,048
66.175.172.0/24 AS15212 C Spire 256
66.175.133.0/24 AS396010 Franklin Telephone Company, Inc. 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity
Read more

Pingable IPs

6 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
66.175.242.153 AS19353 Trans Union, LLC 2.35ms from Chicago, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
117.200.99.215 AS9829 National Internet Backbone 9.72ms from Bengaluru, IN
72.61.77.71 AS47583 Hostinger International Limited 0.79ms from Boston, US
107.192.46.231 AS7018 AT&T Enterprises, LLC 8.15ms from Chicago, US
149.52.15.135 AS55201 SkyQuantum Internet Service 0.29ms from Fremont, US
122.224.143.7 AS4134 CHINANET-BACKBONE 4.15ms from Hangzhou, CN
104.224.64.119 AS21769 Colocation America Corporation 0.17ms from Los Angeles, US
186.121.58.151 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 18.75ms from Panama, PA
221.195.206.39 AS4837 CHINA UNICOM China169 Backbone 9.58ms from Qingdao, CN
101.132.29.39 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.28ms from Shanghai, CN
218.21.30.7 AS4134 CHINANET-BACKBONE 2.94ms from Zhongwei, CN
81.221.152.167 AS1836 green.ch AG 1.86ms from Zuerich, CH
131.118.72.55 AS6059 University System of Maryland 5.37ms from Ashburn, US
190.131.237.103 AS262191 LIBERTY NETWORKS DE COLOMBIA S.A.S 0.75ms from Bogota, CO
48.211.166.71 AS8075 Microsoft Corporation 0.36ms from Boydton, US
123.26.21.151 AS45899 VNPT Corp 7.77ms from Da Nang, VN
86.157.67.151 AS2856 British Telecommunications PLC 2.00ms from London, GB
189.136.235.151 AS8151 UNINET 2.77ms from Mexico City, MX
222.2.15.167 AS2516 KDDI CORPORATION 15.75ms from Osaka, JP
58.162.240.231 AS1221 Telstra Limited 1.77ms from Perth, AU
69.153.86.103 AS7018 AT&T Enterprises, LLC 3.72ms from San Jose, US
210.107.75.119 AS9704 Korea Investment Trust Management Securities Co.,LTD 0.96ms from Seoul, KR
208.101.105.87 AS35911 Telebec 11.57ms from Toronto, CA
4.157.230.135 AS8075 Microsoft Corporation 0.55ms from Ashburn, US
67.197.11.151 AS14615 Comporium, Inc 10.22ms from Durham, US
141.82.100.23 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 1.70ms from Garching, DE

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f3 -m8 66.175.243.101
traceroute to 66.175.243.101 (66.175.243.101): 8 hops max, 52 byte packets
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Santiago de Queretaro, MX
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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