AS27281 Quantcast Corporation

QUANTCAST - Quantcast Corporation · registered in the United States

IPv4 addresses3,5847 prefixes · <0.001% of announced IPv4

Rank in United States#5,025largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#17,056of 79,396 networks with IPv4

IPv610 x /487 prefixes

CountryUnited States18,679 ASNs registered there

Open AS27281 in ASN lookup Look up an IP in this network (91.228.72.1) All networks in United States

IPv4 prefixes

All 7 prefixes, in address order.

91.228.72.0/24
91.228.74.0/24
103.229.11.0/24
192.184.67.0/24
192.184.68.0/22
192.184.72.0/22
192.184.76.0/23

IPv6 prefixes

All 7 prefixes.

2620:116:800b::/48
2620:116:800c::/47
2620:116:801a::/47
2620:116:801c::/47
2620:116:801e::/48
2620:116:8082::/48
2620:116:808c::/48

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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