subnet.im

AS6327Shaw Communications

CanadaRegistryARINTypeEyeball

As of 26th September 2026, AS6327 (Shaw Communications), an access network registered in Canada with ARIN, originates 3,838 IPv4 prefixes covering 13.4M addresses and 167 IPv6 prefixes. By IPv4 address space that makes it the 54th-largest of the 79,516 networks we see originating IPv4, and the largest of 1,575 in Canada. It is seen behind 26 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS3356 (Lumen (Level 3)), and in front of 196 downstream networks. 93% of its announcements have a valid RPKI ROA; 58 are RPKI-invalid. 98% of its routes reach at least 90% of full-feed peers, and 5 prefixes are also originated by another network.

At a glance

IPv4 prefixes

3,838

IPv6 prefixes

167

IPv4 addresses

13.4M

IPv6 /64s

86.6B

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…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS6667Elisa 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

512

adjacent networks

Upstreams
265%
Peers
29057%
Downstreams
19638%

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

Upstreams of AS6327
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer129,053112
AS3356Lumen (Level 3)USPeer81,51270
AS174Cogent Communications, LLCUSPeer30,28781
AS3257GTT Communications Inc.USPeer24,62590
AS6939Hurricane Electric LLCUSPeer24,59220
AS9002RETN LimitedGBPeer21,24816
AS3491PCCW Global (HK) Ltd.HKPeer19,09711
AS2497Internet Initiative Japan Inc.JPPeer15,1985
AS14537Continent 8 LLCUSPeer10,3114
AS4637Telstra International LimitedHKPeer5,9943

Prefixes

All 4,005

The largest blocks AS6327 originates, widest first.

Largest prefixes originated by AS6327
PrefixAddressesVisibility
70.64.0.0/121M80/81
24.64.0.0/13524k80/81
50.64.0.0/13524k80/81
68.144.0.0/13524k80/81
96.48.0.0/13524k80/81
174.0.0.0/13524k80/81
184.64.0.0/13524k80/81
24.76.0.0/14262k81/81
24.84.0.0/14262k81/81
68.144.0.0/14262k81/81

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

  • Valid92.9%3,720
  • Invalid1.4%58
  • No ROA5.7%227

Propagation

  • Globally propagated90% of full-feed peers or more98.4%3,941
  • Partially propagated40% to 90%<0.1%3
  • Seen by few peersUnder 40%1.5%61

Prefix sizes

IPv4 — 3,838 prefixes

IPv6 — 167 prefixes

  • /2868.7B × /640.6%1
  • /324.3B × /641.2%2
  • /36268M × /6416.8%28
  • /37134M × /641.8%3
  • /3867.1M × /647.2%12
  • /4016.8M × /6418.0%30
  • /418.4M × /640.6%1
  • /424.2M × /640.6%1
  • /4865.5k × /6453.3%89

Recent changes

Announcements that started or stopped since 28th Aug 2026.

123 announced and 24 withdrawn in all; the most recent are shown.

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