subnet.im

AS6327Shaw Communications

CanadaRegistryARINTypeEyeball

As of 10th November 2026, AS6327 (Shaw Communications), an access network registered in Canada with ARIN, originates 3,875 IPv4 prefixes covering 13.5M addresses and 158 IPv6 prefixes. By IPv4 address space that makes it the 54th-largest of the 80,733 networks we see originating IPv4, and the largest of 1,606 in Canada. It is seen behind 23 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS3356 (Lumen (Level 3)), and in front of 198 downstream networks. 94% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers, and 3 prefixes are also originated by another network.

At a glance

IPv4 prefixes

3,875

IPv6 prefixes

158

IPv4 addresses

13.5M

IPv6 /64s

86.5B

Upstream graph

The networks AS6327 is seen behind, one and two hops out, drawn from real AS paths.

AS6327Toward the internet core
Upstream graph for AS6327: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS6327Shaw Communicatio…This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS3257GTT Communication…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS151326DCConnect Communi…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS6667Elisa OyjAS398465Rackdog LLCAS2914NTT America, Inc.AS3549Lumen (fka. Globa…

Networks observed one and two hops upstream of AS6327 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

508

adjacent networks

Upstreams
235%
Peers
28756%
Downstreams
19839%

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

Upstreams of AS6327
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer127,57697
AS3356Lumen (Level 3)USPeer82,83969
AS174Cogent Communications, LLCUSPeer30,16990
AS3257GTT Communications Inc.USPeer27,296108
AS6939Hurricane Electric LLCUSPeer20,70618
AS3491PCCW Global (HK) Ltd.HKPeer19,86912
AS2497Internet Initiative Japan Inc.JPPeer15,4745
AS9002RETN LimitedGBPeer11,42411
AS14537Continent 8 LLCUSPeer10,4244
AS24482SG.GSSGPeer5,8744

Prefixes

All 4,033

The largest blocks AS6327 originates, widest first.

Largest prefixes originated by AS6327
PrefixAddressesVisibility
70.64.0.0/121M75/76
24.64.0.0/13524k75/76
50.64.0.0/13524k75/76
68.144.0.0/13524k75/76
96.48.0.0/13524k75/76
174.0.0.0/13524k75/76
184.64.0.0/13524k75/76
24.76.0.0/14262k76/76
24.84.0.0/14262k76/76
68.144.0.0/14262k76/76

Routing health

How AS6327'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

  • Valid93.8%3,782
  • Invalid0.0%0
  • No ROA6.2%251

Propagation

  • Globally propagated90% of full-feed peers or more99.3%4,003
  • Partially propagated40% to 90%<0.1%1
  • Seen by few peersUnder 40%0.7%29

Prefix sizes

IPv4 — 3,875 prefixes

IPv6 — 158 prefixes

  • /2868.7B × /640.6%1
  • /324.3B × /641.3%2
  • /36268M × /6417.7%28
  • /37134M × /641.9%3
  • /3867.1M × /647.6%12
  • /4016.8M × /6416.5%26
  • /418.4M × /640.6%1
  • /424.2M × /640.6%1
  • /4865.5k × /6453.2%84

Recent changes

Announcements that started or stopped since 12th Oct 2026.

45 announced and 16 withdrawn in all; the most recent are shown.

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