ASN Lookup Tool

THE NIELSEN COMPANY US , LLC nielsen.com US US 1 Routes

AS Data

AS399443

AS399443 – THE NIELSEN COMPANY US , LLC

AS Number 399443
AS Name NIELSEN-MEDIA
Organization THE NIELSEN COMPANY US , LLC(nul-18)
Country US
Website nielsen.com
Number of IPv4 Routes 1
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2021-03-15

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Use ASN data for AS399443 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
162.33.73.0/24 256

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:       399443
ASName:         NIELSEN-MEDIA
ASHandle:       AS399443
RegDate:        2021-03-15
Updated:        2021-03-15    
Ref:            https://rdap.arin.net/registry/autnum/399443


OrgName:        THE NIELSEN COMPANY (US), LLC
OrgId:          NUL-18
Address:        85 Broad Street
City:           New York
StateProv:      NY
PostalCode:     10004
Country:        US
RegDate:        2020-12-22
Updated:        2025-06-17
Ref:            https://rdap.arin.net/registry/entity/NUL-18


OrgTechHandle: INSEL-ARIN
OrgTechName:   Insel, Thomas 
OrgTechPhone:  +1-646-441-2108 
OrgTechEmail:  thomas.insel@nielsen.com
OrgTechRef:    https://rdap.arin.net/registry/entity/INSEL-ARIN

OrgAbuseHandle: INSEL-ARIN
OrgAbuseName:   Insel, Thomas 
OrgAbusePhone:  +1-646-441-2108 
OrgAbuseEmail:  thomas.insel@nielsen.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/INSEL-ARIN

OrgNOCHandle: INSEL-ARIN
OrgNOCName:   Insel, Thomas 
OrgNOCPhone:  +1-646-441-2108 
OrgNOCEmail:  thomas.insel@nielsen.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/INSEL-ARIN

OrgRoutingHandle: INSEL-ARIN
OrgRoutingName:   Insel, Thomas 
OrgRoutingPhone:  +1-646-441-2108 
OrgRoutingEmail:  thomas.insel@nielsen.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/INSEL-ARIN

OrgDNSHandle: INSEL-ARIN
OrgDNSName:   Insel, Thomas 
OrgDNSPhone:  +1-646-441-2108 
OrgDNSEmail:  thomas.insel@nielsen.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/INSEL-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
AS15994 A1 Hrvatska d.o.o. HR

Upstreams

AS Number Description Country
AS15994 A1 Hrvatska d.o.o. HR

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Frequently Asked Questions

ASN AS399443 is an Autonomous System Number used to identify a network for BGP internet routing.
AS399443 is listed under THE NIELSEN COMPANY US , LLC.
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.