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AS4476British Columbia Institute of Technology

CanadaRegistryARIN

As of 24th October 2026, AS4476 (British Columbia Institute of Technology), a network registered in Canada with ARIN, originates 9 IPv4 prefixes covering 67.6k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 3,259th-largest of the 79,642 networks we see originating IPv4, and the 96th-largest of 1,588 in Canada. It is seen behind 1 upstream network, most often AS271 (BCNET). Every one of its announcements has 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

9

IPv6 prefixes

1

IPv4 addresses

67.6k

IPv6 /64s

65.5k

Upstream graph

The networks AS4476 is seen behind, one and two hops out, drawn from real AS paths.

AS4476Toward the internet core
Upstream graph for AS4476: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS4476British Columbia …This networkAS271BCNETAS1299Arelion (fka. Tel…AS6327Shaw Communicatio…

Networks observed one and two hops upstream of AS4476 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS4476
NetworkCountryRelationshipPathsVantage pts
AS271BCNETCAPeer746138

Prefixes

The largest blocks AS4476 originates, widest first.

Largest prefixes originated by AS4476
PrefixAddressesVisibility
142.232.0.0/1665.5k76/76
142.231.3.0/2425676/76
142.231.6.0/2425676/76
192.68.68.0/2425676/76
192.68.69.0/2425676/76
192.68.70.0/2425676/76
192.68.71.0/2425676/76
192.68.73.0/2425676/76
192.68.74.0/2425676/76
2607:f8f0:630::/4865.5k × /6462/63

Routing health

How AS4476'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

  • Valid100.0%10
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%10
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 9 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS4476 started or stopped in this period.

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