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AS30528E. I. Catalyst

CanadaRegistryARIN

As of 24th October 2026, AS30528 (E. I. Catalyst), a network registered in Canada with ARIN, originates 3 IPv4 prefixes covering 8.4k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 11,603rd-largest of the 79,682 networks we see originating IPv4, and the 318th-largest of 1,587 in Canada. It is seen behind 8 upstream networks, most often AS7311 (Frontier Networks Inc) and AS835 (GoCodeIT Inc), and in front of 1 downstream network. 75% 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

3

IPv6 prefixes

1

IPv4 addresses

8.4k

IPv6 /64s

4.3B

Upstream graph

The networks AS30528 is seen behind, one and two hops out, drawn from real AS paths.

AS30528Toward the internet core
Upstream graph for AS30528: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS30528E. I. CatalystThis networkAS835GoCodeIT IncAS6939Hurricane Electri…AS7311Frontier Networks…AS22652Videotron LteeAS49544i3D.net B.VAS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS174Cogent Communicat…AS3257GTT Communication…AS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS30528 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
831%
Peers
1765%
Downstreams
14%

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

Upstreams of AS30528
NetworkCountryRelationshipPathsVantage pts
AS7311Frontier Networks IncCAPeer217107
AS835GoCodeIT IncCAPeer19375
AS6939Hurricane Electric LLCUSPeer126
AS49544i3D.net B.VNLPeer62
AS35280F5 Networks SARLFRPeer51
AS22652Videotron LteeCAPeer51
AS24482SG.GSSGPeer42
AS20473The Constant Company, LLCUSPeer11

Prefixes

The largest blocks AS30528 originates, widest first.

Largest prefixes originated by AS30528
PrefixAddressesVisibility
66.96.16.0/204.1k76/76
72.0.64.0/204.1k76/76
205.189.139.0/2425676/76
2001:1928::/324.3B × /6463/63

Routing health

How AS30528'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

  • Valid75.0%3
  • Invalid0.0%0
  • No ROA25.0%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS30528 started or stopped in this period.

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