| 2a01:3e0:10:1100:: | 2a01:3e0:10:1fff:ffff:ffff:ffff:ffff | TATA Communications (Canada) Ltd. |
| 2a01:3e0:10:2000:: | 2a01:3e0:10:20ff:ffff:ffff:ffff:ffff | Customers acces-30 and BB use for tcore1 |
| 2a01:3e0:10:2100:: | 2a01:3e0:10:21ff:ffff:ffff:ffff:ffff | Customers acces-30 and BB use for tcore2 |
| 2a01:3e0:10:2200:: | 2a01:3e0:10:ffff:ffff:ffff:ffff:ffff | TATA Communications (Canada) Ltd. |
| 2a01:3e0:11:: | 2a01:3e0:1e:ffff:ffff:ffff:ffff:ffff | TATA Communications (Canada) Ltd. |
| 2a01:3e0:1f:: | 2a01:3e0:1f:ffff:ffff:ffff:ffff:ffff | TATA Communications (Canada) Ltd. |
| 2a01:3e0:20:: | 2a01:3e0:20:1ff:ffff:ffff:ffff:ffff | Customers access /126 and BB internal use |
| 2a01:3e0:20:200:: | 2a01:3e0:20:ffff:ffff:ffff:ffff:ffff | TATA Communications (Canada) Ltd. |
| 2a01:3e0:21:: | 2a01:3e0:22:ffff:ffff:ffff:ffff:ffff | GB, Highbridge |
| 2a01:3e0:23:: | 2a01:3e0:2f:ffff:ffff:ffff:ffff:ffff | TATA Communications (Canada) Ltd. |