ASN Lookup Tool

Group M Worldwide, LLC wpp.com US US 1 Routes

AS Data

AS398856

AS398856 – Group M Worldwide, LLC

AS Number 398856
AS Name WPP-DETROIT
Organization Group M Worldwide, LLC(gmw-4)
Country US
Website wpp.com
Number of IPv4 Routes 1
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2020-10-01

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Use ASN data for AS398856 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
209.90.42.0/24 256

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:       398856
ASName:         WPP-DETROIT
ASHandle:       AS398856
RegDate:        2020-10-01
Updated:        2022-10-19    
Ref:            https://rdap.arin.net/registry/autnum/398856


OrgName:        Group M Worldwide, LLC
OrgId:          GMW-4
Address:        175 Greenwich St
City:           New York
StateProv:      NY
PostalCode:     10006
Country:        US
RegDate:        2008-04-22
Updated:        2025-05-27
Ref:            https://rdap.arin.net/registry/entity/GMW-4


OrgTechHandle: HERBE97-ARIN
OrgTechName:   Herbert, Gavin 
OrgTechPhone:  +447970314010 
OrgTechEmail:  gavin.herbert@wpp.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HERBE97-ARIN

OrgTechHandle: MOKEN-ARIN
OrgTechName:   Moken, Matthew 
OrgTechPhone:  +1-732-856-2110 
OrgTechEmail:  matthew.moken@wpp.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MOKEN-ARIN

OrgTechHandle: BARTL198-ARIN
OrgTechName:   Bartlett, Michael 
OrgTechPhone:  +07900763881 
OrgTechEmail:  michael.bartlett@wpp.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BARTL198-ARIN

OrgTechHandle: WRTC-ARIN
OrgTechName:   WPP RIR Technical Contact
OrgTechPhone:  +020 3193 4892 
OrgTechEmail:  RIR.Technical.Contact@wpp.com
OrgTechRef:    https://rdap.arin.net/registry/entity/WRTC-ARIN

OrgAbuseHandle: WRTC-ARIN
OrgAbuseName:   WPP RIR Technical Contact
OrgAbusePhone:  +020 3193 4892 
OrgAbuseEmail:  RIR.Technical.Contact@wpp.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/WRTC-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
AS30517 Great Lakes Comnet, Inc. US
AS33668 Comcast Cable Communications, LLC US

Upstreams

AS Number Description Country
AS30517 Great Lakes Comnet, Inc. US
AS33668 Comcast Cable Communications, LLC US

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Frequently Asked Questions

ASN AS398856 is an Autonomous System Number used to identify a network for BGP internet routing.
AS398856 is listed under Group M Worldwide, 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.