subnet.im

AS20161TeraGo Networks Inc.

CanadaRegistryARIN

As of 22nd October 2026, AS20161 (TeraGo Networks Inc.), a network registered in Canada with ARIN, originates 220 IPv4 prefixes covering 272k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 1,045th-largest of the 79,663 networks we see originating IPv4, and the 37th-largest of 1,589 in Canada. It is seen behind 8 upstream networks, most often AS6327 (Shaw Communications) and AS6461 (Zayo Bandwidth), and in front of 7 downstream networks. None of its announcements have a valid RPKI ROA. Over 99% 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

220

IPv6 prefixes

4

IPv4 addresses

272k

IPv6 /64s

71.9B

Upstream graph

The networks AS20161 is seen behind, one and two hops out, drawn from real AS paths.

AS20161Toward the internet core
Upstream graph for AS20161: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS20161TeraGo Networks I…This networkAS6327Shaw Communicatio…AS6461Zayo BandwidthAS6939Hurricane Electri…AS22652Videotron LteeAS49544i3D.net B.VAS32590Valve CorporationAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS20130Depaul UniversityAS132337AxclusiveAS2914NTT America, Inc.AS3257GTT Communication…

Networks observed one and two hops upstream of AS20161 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

42

adjacent networks

Upstreams
819%
Peers
2764%
Downstreams
717%

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

Upstreams of AS20161
NetworkCountryRelationshipPathsVantage pts
AS6327Shaw CommunicationsCAPeer8,07079
AS6461Zayo BandwidthUSPeer6,07375
AS6939Hurricane Electric LLCUSPeer3,580110
AS49544i3D.net B.VNLPeer2292
AS22652Videotron LteeCAPeer1071
AS24482SG.GSSGPeer1041
AS35280F5 Networks SARLFRPeer991
AS20473The Constant Company, LLCUSPeer31

Prefixes

All 224

The largest blocks AS20161 originates, widest first.

Largest prefixes originated by AS20161
PrefixAddressesVisibility
68.179.0.0/1732.8k77/77
64.201.160.0/198.2k77/77
66.11.64.0/198.2k77/77
66.119.160.0/198.2k77/77
66.225.128.0/198.2k77/77
67.226.128.0/198.2k77/77
68.179.96.0/198.2k77/77
76.77.64.0/198.2k77/77
173.212.128.0/198.2k77/77
209.97.192.0/198.2k77/77

Routing health

How AS20161'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%224

Propagation

  • Globally propagated90% of full-feed peers or more99.6%223
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.4%1

Prefix sizes

IPv4 — 220 prefixes

IPv6 — 4 prefixes

  • /2868.7B × /6425.0%1
  • /341.1B × /6475.0%3

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS20161 started or stopped in this period.

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