AS19281 Quad9

QUAD9-AS-1 - Quad9 · registered in the United States

IPv4 addresses1,2805 prefixes · <0.001% of announced IPv4

Rank in United States#7,353largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#28,203of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS19281 in ASN lookup Look up an IP in this network (9.9.9.1) All networks in United States

IPv4 prefixes

All 5 prefixes, in address order.

9.9.9.0/24
147.72.242.0/24
149.112.112.0/24
149.112.149.0/24
199.249.255.0/24

IPv6 prefixes

All 1 prefix.

2620:fe::/48

Other ASNs named Quad9

1 other network uses the same organisation name; together with AS19281 they announce 1,792 IPv4 addresses.

ASNNameIPv4 addresses

AS398891QUAD9-AS-2 - Quad9 US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS14054#7350 PURPLENET - Purple Computer North America, Inc.1,280

AS14777#7351 YAHOO - Yahoo Holdings Inc.1,280

AS18888#7352 AS-ZILLOW - ZILLOW, INC.1,280

AS36088#7354 YAHOO-BCST-AC2 - Yahoo Holdings Inc.1,280

AS46323#7355 TELEBROAD - Telebroad LLC1,280

AS53355#7356 CUW-1 - Concordia University Wisconsin1,280

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