AS19446 — 3ZCANADA-01

AS19446 announces 10 IPv4 prefixes covering 4,096 addresses and 1 IPv6 prefixes.

About this network

The AS handle 3ZCANADA-01 is held by 3Z Canada.

What it's used for

• The address space carries a mix of corporate and third-party infrastructure, with netnames including 3ZCANADA-01, CAC-BLOCK5, CAC-BLOCK10, NETUTILS, and IMS-CA.
• The AS announces 4096 IPv4 addresses across 10 prefixes and 1 IPv6 prefix, while maintaining only 3 observed neighbours, a ratio that suggests a business or internal corporate estate rather than a transit provider.

Notable

• Registrants vary significantly across the inventory, including 3Z Canada, Colocation America Corporation, Internet Utilities NA LLC, and Inquiry Management Systems, indicating the space is composed of multiple distinct blocks.
• The address inventory is fragmented into ten separate IPv4 prefixes, with the largest being a /22 and the rest ranging from /23 to /24, reflecting a non-contiguous allocation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 66.78.46.0/24
• 67.227.24.0/23
• 67.227.28.0/23
• 67.227.41.0/24
• 67.227.79.0/24
• 104.224.72.0/23
• 104.224.78.0/24
• 131.143.96.0/22
• 140.99.237.0/24
• 205.189.47.0/24
• 2607:b440::/32

Upstream networks

• AS40028 1651884 Ontario Inc.
• AS22533 Inquiry Management Systems

Downstream networks

• AS402083 Solve-All

Adjacent networks

• AS40028 1651884 Ontario Inc.
• AS402083 Solve-All
• AS22533 Inquiry Management Systems

Routing security

• RPKI: 13 valid, 1 invalid and 1 not-found announcements; 13 ROAs.
• ASPA: none published.
• IRR: 80% of announcements registered; 23 route objects.
• Listed in as-sets: AS-11647-NETWORKS, AS40028:AS-CUSTOMERS.