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AS27495Open Text Corporation

CanadaRegistryARIN

As of 24th October 2026, AS27495 (Open Text Corporation), a network registered in Canada with ARIN, originates 16 IPv4 prefixes covering 76.8k addresses. By IPv4 address space that makes it the 2,855th-largest of the 79,642 networks we see originating IPv4, and the 83rd-largest of 1,588 in Canada. It is seen behind 3 upstream networks, most often AS6461 (Zayo Bandwidth) and AS7018 (AT&T Enterprises, LLC). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

16

IPv6 prefixes

0

IPv4 addresses

76.8k

IPv6 /64s

0

Upstream graph

The networks AS27495 is seen behind, one and two hops out, drawn from real AS paths.

AS27495Toward the internet core
Upstream graph for AS27495: 7 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS27495Open Text Corpora…This networkAS701Verizon BusinessAS6461Zayo BandwidthAS7018AT&T Enterprises,…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3356Lumen (Level 3)AS32590Valve Corporation

Networks observed one and two hops upstream of AS27495 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

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS27495
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer90060
AS7018AT&T Enterprises, LLCUSPeer27176
AS701Verizon BusinessUSPeer453

Prefixes

The largest blocks AS27495 originates, widest first.

Largest prefixes originated by AS27495
PrefixAddressesVisibility
137.236.0.0/1665.5k76/76
165.251.32.0/204.1k76/76
165.251.8.0/212k76/76
165.251.16.0/212k76/76
137.236.34.0/2425676/76
137.236.36.0/2425676/76
137.236.211.0/2425676/76
137.236.241.0/2425676/76
165.251.9.0/2425676/76
165.251.25.0/2425676/76

Routing health

How AS27495'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%16

Propagation

  • Globally propagated90% of full-feed peers or more100.0%16
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 16 prefixes

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS27495 started or stopped in this period.

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