subnet.im

AS397468Think On, Inc.

CanadaRegistryARIN

As of 24th October 2026, AS397468 (Think On, Inc.), a network registered in Canada with ARIN, originates 23 IPv4 prefixes covering 6.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 13,890th-largest of the 79,671 networks we see originating IPv4, and the 378th-largest of 1,586 in Canada. It is seen behind 12 upstream networks, most often AS577 (Bell Canada) and AS3356 (Lumen (Level 3)). 63% 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

23

IPv6 prefixes

1

IPv4 addresses

6.1k

IPv6 /64s

65.5k

Upstream graph

The networks AS397468 is seen behind, one and two hops out, drawn from real AS paths.

AS397468Toward the internet core
Upstream graph for AS397468: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS397468Think On, Inc.This networkAS577Bell CanadaAS812Rogers Communicat…AS3356Lumen (Level 3)AS4764Aussie Fibre Pty …AS49915Megaport Global A…AS1403EBOXAS174Cogent Communicat…AS6461Zayo BandwidthAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS3257GTT Communication…

Networks observed one and two hops upstream of AS397468 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

25

adjacent networks

Upstreams
1248%
Peers
1352%
Downstreams
00%

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

Upstreams of AS397468
NetworkCountryRelationshipPathsVantage pts
AS577Bell CanadaCAPeer45694
AS3356Lumen (Level 3)USPeer30476
AS812Rogers Communications Canada Inc.CAPeer30199
AS4764Aussie Fibre Pty LtdAUPeer23949
AS49915Megaport Global AccessGBPeer14129
AS7474SingTel Optus Pty LtdAUPeer13869
AS6461Zayo BandwidthUSPeer6666
AS7018AT&T Enterprises, LLCUSPeer5353
AS21949Beanfield Technologies Inc.CAPeer3939
AS174Cogent Communications, LLCUSPeer3636

Prefixes

The largest blocks AS397468 originates, widest first.

Largest prefixes originated by AS397468
PrefixAddressesVisibility
203.15.172.0/2351276/76
38.20.176.0/2425676/76
38.20.177.0/2425676/76
38.64.255.0/2425676/76
38.69.220.0/2425676/76
38.84.8.0/2425676/76
38.99.138.0/2425676/76
38.102.93.0/2425676/76
38.102.103.0/2425676/76
38.121.58.0/2425676/76

Routing health

How AS397468'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

  • Valid62.5%15
  • Invalid0.0%0
  • No ROA37.5%9

Propagation

  • Globally propagated90% of full-feed peers or more100.0%24
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 23 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 24th Sept 2026.

  • Withdrawn149.5.5.0/2425th Sept 2026

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