AS398018 Group M Worldwide, LLC

WPP-IT-CHICAGO - Group M Worldwide, LLC · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#17,392largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#78,285of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS398018 in ASN lookup Look up an IP in this network (209.90.59.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

209.90.59.0/24

Other ASNs named Group M Worldwide, LLC

2 other networks use the same organisation name; together with AS398018 they announce 3,072 IPv4 addresses.

ASNNameIPv4 addresses

AS26470WPP-IT-PISCATAWAY - Group M Worldwide, LLC US2,560

AS398856WPP-DETROIT - Group M Worldwide, LLC US256

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AS398028#17394 PSFC-NYC - Park Slope Food Coop Inc256

AS398030#17395 ATFBGP-LIN - ATF, INC.256

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources