50.66.0.0/16

Currently announced by AS6327 Shaw Cablesystems, in the routed prefix 50.66.0.0/16.

Current ASN: AS6327; Shaw Cablesystems
Routed prefix: 50.66.0.0/16; Most specific route covering this prefix
ASNs over time: 1; 2 announcement records
RIR allocation: ARIN; Canada · 50.64.0.0/13

Routing data · Oct 23, 2026, 20:21 UTC

ASN historyEvery routed prefix covering 50.66.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
50.66.0.0/16	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.64.0.0/13	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing

More specific routes34 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
50.66.32.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.36.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.40.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.44.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.48.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.52.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.56.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.60.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.64.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.68.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.72.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.76.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.80.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.84.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.88.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.92.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.96.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.100.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.128.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.132.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.136.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.140.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.144.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.148.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.152.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.156.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.160.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.164.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.168.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.172.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.176.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.180.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.184.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing
50.66.188.0/22	AS6327	Shaw Cablesystems	Canada	Before monitoring	2026-10-23 20:21	Announcing

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.

Look up another address

RIR allocation record

Registry: ARIN
Allocated block: 50.64.0.0/13
Country: Canada
Allocation date: 2010-10-28
Status: allocated

From the RIRs’ delegated statistics files. Shows where the addresses are registered, not where they are used.

How monitoring works

Every 2 hours ASNBase takes the bgp.tools global routing table (prefix → origin ASN) and compares it with the previous one. The detected time is the time of that comparison; the actual change can be up to about 2 hours earlier.
Only routes seen by more than 100 bgp.tools peers are listed as changes; routes with less visibility are only kept in the history.
A new announcement counts only if it is still in the next routing table, and a withdrawal only if the prefix is missing from two tables in a row, so short flaps are ignored.
ASNBase has been monitoring since 2026-10-19. “Before monitoring” under “First seen” means the route was already announced when monitoring started; the earlier date is unknown.
Prefixes first seen during the first day of monitoring do not count as new announcements: most of them were simply missing from the table at the moment monitoring started.
Countries and regions follow the ASN’s registration, not the actual location of the IP addresses.