subnet.im

AS27385QUALYS, Inc.

United StatesRegistryARIN

As of 22nd October 2026, AS27385 (QUALYS, Inc.), a network registered in the United States with ARIN, originates 22 IPv4 prefixes covering 5.6k addresses and 8 IPv6 prefixes. By IPv4 address space that makes it the 14,707th-largest of the 79,655 networks we see originating IPv4, and the 4,197th-largest of 18,475 in the United States. It is seen behind 6 upstream networks, most often AS13335 (Cloudflare, Inc.) and AS3356 (Lumen (Level 3)). 67% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

22

IPv6 prefixes

8

IPv4 addresses

5.6k

IPv6 /64s

524k

Upstream graph

The networks AS27385 is seen behind, one and two hops out, drawn from real AS paths.

AS27385Toward the internet core
Upstream graph for AS27385: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS27385QUALYS, Inc.This networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS6461Zayo BandwidthAS7018AT&T Enterprises,…AS13335Cloudflare, Inc.AS151326DCConnect Communi…AS3549Lumen (fka. Globa…AS1299Arelion (fka. Tel…AS32590Valve CorporationAS2914NTT America, Inc.AS6453TATA Communicatio…

Networks observed one and two hops upstream of AS27385 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

14

adjacent networks

Upstreams
643%
Peers
857%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS27385
NetworkCountryRelationshipPathsVantage pts
AS13335Cloudflare, Inc.USPeer99277
AS3356Lumen (Level 3)USPeer590114
AS174Cogent Communications, LLCUSPeer43389
AS6461Zayo BandwidthUSPeer13668
AS7018AT&T Enterprises, LLCUSPeer189
AS9498Bharti Airtel Ltd.INPeer99

Prefixes

All 30

The largest blocks AS27385 originates, widest first.

Largest prefixes originated by AS27385
PrefixAddressesVisibility
38.90.156.0/2425677/77
64.39.96.0/2425677/77
64.39.101.0/2425677/77
64.39.103.0/2425676/77
64.39.104.0/2425677/77
64.39.105.0/2425677/77
64.39.107.0/2425676/77
64.39.109.0/2425677/77
64.39.110.0/2425677/77
69.67.176.0/2425677/77

Routing health

How AS27385's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid66.7%20
  • Invalid0.0%0
  • No ROA33.3%10

Propagation

  • Globally propagated90% of full-feed peers or more100.0%30
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 22 prefixes

IPv6 — 8 prefixes

  • /4865.5k × /64100.0%8

Recent changes

Announcements that started or stopped since 22nd Sept 2026.

No announcement by AS27385 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.