AS7786 - NEUSTAR-AS1 - Trans Union, LLC, US

United States
AS Number
AS7786
AS Name
NEUSTAR-AS1
Org Name
Trans Union, LLC
Country / Region
United States
Registry

arin

RegDate

2007-06-06

Updated

2026-06-30

AS7786 Looking Glass
https://www.ultratools.com/tools/lookingGlassTools
IPv4Prefixes

23

IPv6Prefixes

0

IPv4 NUMs

7,168

IPv6 NUMs(/64)

0

CIDR Description IP Num
156.154.16.0/22
IRR InValid
NeuStar, Inc. 1024
156.154.24.0/24
IRR Valid
NeuStar, Inc. 256
156.154.25.0/24
IRR Valid
NeuStar, Inc. 256
156.154.26.0/24
IRR Valid
NeuStar, Inc. 256
156.154.30.0/24
IRR Parent Valid
NeuStar, Inc. 256
156.154.42.0/24
IRR Valid
NeuStar, Inc. 256
156.154.52.0/24
IRR Valid
NeuStar, Inc. 256
156.154.56.0/24
IRR Valid
NeuStar, Inc. 256
156.154.59.0/24
IRR Valid
Trans Union, LLC 256
156.154.83.0/24
IRR Valid
NeuStar, Inc. 256
156.154.116.0/24
IRR Valid
NeuStar, Inc. 256
156.154.117.0/24
IRR Valid
NeuStar, Inc. 256
156.154.136.0/24
IRR Valid
NeuStar, Inc. 256
156.154.138.0/24
IRR Valid
NeuStar, Inc. 256
156.154.148.0/23
IRR InValid
NeuStar, Inc. 512
156.154.188.0/23
IRR InValid
NeuStar, Inc. 512
156.154.192.0/24
IRR Valid
NeuStar, Inc. 256
156.154.193.0/24
IRR Valid
NeuStar, Inc. 256
156.154.196.0/24
IRR Valid
NeuStar, Inc. 256
156.154.199.0/24
IRR Valid
NeuStar, Inc. 256
156.154.200.0/24
IRR Valid
NeuStar, Inc. 256
156.154.202.0/24
IRR Valid
NeuStar, Inc. 256
209.173.53.0/24
IRR Valid
NeuStar, Inc. 256
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 412,672 77,326,843,904 IPv4 IPv4
AS3257 GTT-BACKBONE - GTT Communications Inc., US United States 8,496,896 442,382,745,600 IPv4 IPv4
AS13335 CLOUDFLARENET - Cloudflare, Inc., US United States 1,338,880 82,704,531,456 IPv4 IPv4
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS12273 TRUELINK - Transunion Interactive, Inc., US United States 2,048 0 IPv4 IPv4 
ASNumber:       7786
ASName:         NEUSTAR-AS1
ASHandle:       AS7786
RegDate:        1997-01-13
Updated:        2026-07-10
Ref:            https://rdap.arin.net/registry/autnum/7786


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


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

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

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

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