subnet.im

AS36040Google (Global Cache)

United StatesRegistryARIN

As of 23rd October 2026, AS36040 (Google (Global Cache)), a network registered in the United States with ARIN, originates 84 IPv4 prefixes covering 21.5k addresses and 78 IPv6 prefixes. By IPv4 address space that makes it the 6,754th-largest of the 79,652 networks we see originating IPv4, and the 2,239th-largest of 18,475 in the United States. It is seen behind 45 upstream networks, most often AS22773 (Cox Communications Inc.) and AS15169 (Google LLC). 88% of its announcements have a valid RPKI ROA; 12 are RPKI-invalid. 78% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

84

IPv6 prefixes

78

IPv4 addresses

21.5k

IPv6 /64s

3.5M

Upstream graph

The networks AS36040 is seen behind, one and two hops out, drawn from real AS paths.

AS36040Toward the internet core
Upstream graph for AS36040: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS36040Google (Global Ca…This networkAS7015Comcast Cable Com…AS15169Google LLCAS22773Cox Communication…AS32381Google Access LLCAS52320V.tal (GlobeNet)AS7922Comcast Cable Com…AS32590Valve CorporationAS35280F5 Networks SARLAS1299Arelion (fka. Tel…AS3257GTT Communication…AS6461Zayo BandwidthAS6939Hurricane Electri…

Networks observed one and two hops upstream of AS36040 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

162

adjacent networks

Upstreams
4528%
Peers
11772%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 45.

Upstreams of AS36040
NetworkCountryRelationshipPathsVantage pts
AS22773Cox Communications Inc.USPeer2,800140
AS15169Google LLCUSPeer1,726138
AS52320V.tal (GlobeNet)COPeer645129
AS7015Comcast Cable Communications, LLCUSPeer588140
AS32381Google Access LLCUSPeer366138
AS7018AT&T Enterprises, LLCUSPeer280140
AS3209Vodafone GmbHDEPeer280140
AS43380Digital Telecom IX LLCUAPeer258132
AS20214Comcast Cable Communications, LLCUSPeer15477
AS33651Comcast Cable Communications, LLCUSPeer15477

Prefixes

All 162

The largest blocks AS36040 originates, widest first.

Largest prefixes originated by AS36040
PrefixAddressesVisibility
65.19.244.0/2351277/77
50.151.212.0/2425677/77
50.151.213.0/2425677/77
50.151.215.0/2425677/77
50.151.216.0/2425677/77
50.151.217.0/2425677/77
50.151.218.0/2425677/77
50.151.219.0/2425677/77
50.151.220.0/2425677/77
50.151.221.0/2425677/77

Routing health

How AS36040'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

  • Valid88.3%143
  • Invalid7.4%12
  • No ROA4.3%7

Propagation

  • Globally propagated90% of full-feed peers or more77.8%126
  • Partially propagated40% to 90%0.6%1
  • Seen by few peersUnder 40%21.6%35

Prefix sizes

IPv4 — 84 prefixes

IPv6 — 78 prefixes

  • /4865.5k × /6469.2%54
  • /49 and longerAggregated30.8%24

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

7 announced and 10 withdrawn in all; the most recent are shown.

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