AS27385 QUALYS, Inc.

QUALYS - QUALYS, Inc. · registered in the United States

IPv4 addresses5,63214 prefixes · <0.001% of announced IPv4

Rank in United States#3,912largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#12,827of 79,396 networks with IPv4

IPv68 x /484 prefixes

CountryUnited States18,679 ASNs registered there

Open AS27385 in ASN lookup Look up an IP in this network (38.90.156.1) All networks in United States

IPv4 prefixes

All 14 prefixes, in address order.

38.90.156.0/24
64.39.96.0/24
64.39.101.0/24
64.39.103.0/24
64.39.104.0/23
64.39.107.0/24
64.39.109.0/24
64.39.110.0/24
69.67.176.0/21
103.75.173.0/24
103.75.174.0/24
103.216.98.0/24
165.193.18.0/24
208.184.60.0/24

IPv6 prefixes

All 4 prefixes.

2602:fdaa:60::/48
2602:fdaa:c1::/48
2602:fdaa:c2::/47
2602:fdaa:c4::/46

Similar-sized networks in United States

ASNNameIPv4 addresses

AS53366#3909 TILLLMAN-FIBER-CO - TILLMAN FIBERCO, LLC5,632

AS31769#3910 GIGSTREEM-NYC - GiGstreem5,632

AS11840#3911 VGRS-REGISTRY-AS - VeriSign Infrastructure & Operations5,632

AS30031#3913 MIMECAST-US - Mimecast North America Inc5,632

AS33522#3914 CPANEL-INC - cPanel, LLC.5,632

AS395592#3915 ERI-CANADA - Ericsson Inc.5,632

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