66.175.248.0/23

AS397151 · Trans Union, LLC

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Summary

Country	United States
Domain	transunion.com
ASN	AS397151
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:        2025-08-05
OrgAdminHandle: TIQ-ARIN
OrgTechHandle:  CALDE247-ARIN
OrgTechHandle:  NETWO10022-ARIN
OrgTechHandle:  TIQ-ARIN
OrgAbuseHandle: GOC10-ARIN
OrgAbuseHandle: NETWO10022-ARIN
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:      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:      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

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
66.175.249.23	AS397151 Trans Union, LLC	`1.86ms` 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
89.207.118.183	AS25222 Inmarsat Solutions B.V.	`0.99ms` from Amsterdam, NL
172.171.198.71	AS8075 Microsoft Corporation	`0.36ms` from Ashburn, US
70.251.210.151	AS7018 AT&T Enterprises, LLC	`2.66ms` from Atlanta, US
74.128.101.119	AS10796 Charter Communications Inc	`9.07ms` from Columbus, US
80.71.71.55	AS44869 FIBIA P/S	`0.51ms` from Copenhagen, DK
94.60.187.231	AS12353 Vodafone Portugal	`6.27ms` from Lisbon, PT
190.95.123.119	AS14117 Telefonica del Sur S.A.	`1.93ms` from Santiago, CL
14.68.199.151	AS4766 Korea Telecom	`2.48ms` from Seoul, KR
187.15.219.71	AS7738 V tal	`7.94ms` from São Paulo, BR
194.87.183.183	AS206446 CLOUD LEASE Ltd	`0.44ms` from Tel Aviv, IL
156.67.202.247	AS31510 Innsbrucker Kommunalbetriebe AG	`8.62ms` from Vienna, AT
104.40.143.55	AS8075 Microsoft Corporation	`0.29ms` from Amsterdam, NL
15.235.36.151	AS16276 OVH SAS	`0.07ms` from Beauharnois, CA
20.14.143.135	AS8075 Microsoft Corporation	`0.37ms` from Boydton, US
91.49.158.199	AS3320 Deutsche Telekom AG	`4.75ms` from Frankfurt am Main, DE
27.42.200.23	AS17816 China Unicom IP network China169 Guangdong province	`5.90ms` from Guangzhou, CN
92.236.71.23	AS5089 Virgin Media Limited	`14.89ms` from London, GB
50.91.210.231	AS33363 Charter Communications, Inc	`8.32ms` from Los Angeles, US
47.158.174.183	AS5650 Frontier Communications of America, Inc.	`3.94ms` from Los Angeles, US
58.172.69.183	AS1221 Telstra Limited	`13.47ms` from Melbourne, AU
151.41.46.199	AS1267 WIND TRE S.P.A.	`8.29ms` from Milan, IT
70.55.74.23	AS577 Bell Canada	`3.09ms` from Montreal, CA
173.77.171.151	AS701 Verizon Business	`2.82ms` from New York City, US
182.165.46.39	AS17511 OPTAGE Inc.	`2.03ms` from Osaka, JP
78.199.133.7	AS12322 Free SAS	`6.88ms` from Paris, FR

Traceroute

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

traceroute -a -n -q1 -m4 66.175.249.18

traceroute to 66.175.249.18 (66.175.249.18): 4 hops max, 52 byte packets

1 [AS61138] 216.73.159.1 2.57 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Santiago, CL

On September 12th 2025

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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