| 2001:770:a1:: | 2001:770:a4:ffff:ffff:ffff:ffff:ffff | ASIERA TECHNOLOGY SERVICES CLG |
| 2001:770:a5:: | 2001:770:a5:ffff:ffff:ffff:ffff:ffff | Akamai IPv6 CDN Node in HEAnet Dublin |
| 2001:770:a6:: | 2001:770:a7:ffff:ffff:ffff:ffff:ffff | ASIERA TECHNOLOGY SERVICES CLG |
| 2001:770:a8:: | 2001:770:a8:ffff:ffff:ffff:ffff:ffff | HEAnet Conference ethernet |
| 2001:770:a9:: | 2001:770:a9:ffff:ffff:ffff:ffff:ffff | ASIERA TECHNOLOGY SERVICES CLG |
| 2001:770:aa:: | 2001:770:aa:ffff:ffff:ffff:ffff:ffff | HEAnet IPv6-only network testbed |
| 2001:770:ab:: | 2001:770:af:ffff:ffff:ffff:ffff:ffff | ASIERA TECHNOLOGY SERVICES CLG |
| 2001:770:b0:: | 2001:770:b0:ffff:ffff:ffff:ffff:ffff | DSL ATM Reach Site. |
| 2001:770:b1:: | 2001:770:b1:ffff:ffff:ffff:ffff:ffff | Marine Institute WiMAX Trial IPv6 |
| 2001:770:b2:: | 2001:770:b4:ffff:ffff:ffff:ffff:ffff | ASIERA TECHNOLOGY SERVICES CLG |