subnet.im

AS8111Dalhousie University

CanadaRegistryARIN

As of 28th September 2026, AS8111 (Dalhousie University), a network registered in Canada with ARIN, originates 7 IPv4 prefixes covering 198k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 1,364th-largest of the 79,556 networks we see originating IPv4, and the 43rd-largest of 1,575 in Canada. It is seen behind 3 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS855 (Bell Canada), and in front of 11 downstream networks. 60% 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

7

IPv6 prefixes

3

IPv4 addresses

198k

IPv6 /64s

16.9M

Upstream graph

The networks AS8111 is seen behind, one and two hops out, drawn from real AS paths.

AS8111Toward the internet core
Upstream graph for AS8111: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8111Dalhousie Univers…This networkAS855Bell CanadaAS6509CANARIE IncAS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS2153CENICAS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS8111 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

26

adjacent networks

Upstreams
312%
Peers
1246%
Downstreams
1142%

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

Upstreams of AS8111
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer2,618139
AS855Bell CanadaCAPeer24873
AS6509CANARIE IncCAPeer12965

Prefixes

The largest blocks AS8111 originates, widest first.

Largest prefixes originated by AS8111
PrefixAddressesVisibility
129.173.0.0/1665.5k82/82
134.190.0.0/1665.5k82/82
140.230.0.0/1665.5k82/82
192.75.96.0/2425682/82
192.75.97.0/2425682/82
192.75.138.0/2425682/82
198.166.233.0/2425682/82
2001:410:a000::/4016.8M × /6464/65
2001:410:a001::/4865.5k × /6464/65
2001:410:a010::/4865.5k × /6464/65

Routing health

How AS8111'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

  • Valid60.0%6
  • Invalid0.0%0
  • No ROA40.0%4

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 — 7 prefixes

IPv6 — 3 prefixes

  • /4016.8M × /6433.3%1
  • /4865.5k × /6466.7%2

Recent changes

Announcements that started or stopped since 29th Aug 2026.

No announcement by AS8111 started or stopped in this period.

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