University of Toronto
AS239 — utoronto.ca
Summary
| Country |
 Canada
|
| Organization | University of Toronto |
| Domain | utoronto.ca |
| Number of IPv4 | 331,264 |
| Number of IPv6 | 2.0362× 1031 |
| AS Type | Education |
| Registry | ARIN |
| Allocated | September 20, 1988 (about 38 years ago) |
| Updated | July 31, 2009 (about 17 years ago) |
IP Ranges
AS239 announces 12 IPv4 ranges and 3 IPv6 ranges.
That's a total of 331,264 IPv4 addresses and 2.0362× 1031 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 128.100.0.0/16 |
University of Toronto
|
65,536 | ARIN | ALLOCATION |
| 138.51.0.0/17 |
University of Toronto
|
32,768 | ARIN | ALLOCATION |
| 138.51.128.0/17 |
University of Toronto
|
32,768 | ARIN | ALLOCATION |
| 142.1.0.0/16 |
University of Toronto
|
65,536 | ARIN | ALLOCATION |
| 142.150.0.0/17 |
University of Toronto
|
32,768 | ARIN | ALLOCATION |
| 142.150.128.0/17 |
University of Toronto
|
32,768 | ARIN | ALLOCATION |
| 142.151.0.0/17 |
University of Toronto
|
32,768 | ARIN | ALLOCATION |
| 142.151.128.0/17 |
University of Toronto
|
32,768 | ARIN | ALLOCATION |
| 192.12.174.0/24 |
University of Toronto
|
256 | ARIN | ALLOCATION |
| 192.12.176.0/21 |
University of Toronto
|
2,048 | ARIN | ALLOCATION |
| 192.75.254.0/24 |
University of Toronto
|
256 | ARIN | ALLOCATION |
| 192.82.128.0/22 |
University of Toronto
|
1,024 | ARIN | ALLOCATION |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2606:fa00::/32 |
University of Toronto
|
7.9228× 1028 | ARIN | ALLOCATION |
| 2631:1000::/24 |
University of Toronto
|
2.0282× 1031 | ARIN | ALLOCATION |
| 2631:1002:22::/48 |
University of Toronto
|
1.2089× 1024 | ARIN | ALLOCATION |
Peers
AS239 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS239 connects to the global Internet via at least 1 upstream provider. In this setup, AS239 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS239 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.