If you try checking google pr on all their datacenters they give this (for nabtron.com):
# | Data Server | Current Pagerank |
| 1 | toolbarqueries.google.com | Datacenter down |
| 2 | 64.233.163.115 | Datacenter down |
| 3 | 64.233.163.107 | Datacenter down |
| 4 | 64.233.179.44 | Datacenter down |
| 5 | 64.233.189.115 | Datacenter down |
| 6 | 64.233.183.84 | Datacenter down |
| 7 | 66.102.11.81 | Datacenter down |
| 8 | 66.249.89.104 | Datacenter down |
| 9 | 66.249.81.81 | Datacenter down |
| 10 | 66.249.91.84 | Datacenter down |
| 11 | 72.14.235.115 | Datacenter down |
| 12 | 209.85.135.101 | Datacenter down |
| 13 | 64.233.169.81 | Datacenter down |
| 14 | 64.233.179.84 | Datacenter down |
| 15 | 64.233.179.104 | Datacenter down |
| 16 | 64.233.183.18 | Datacenter down |
| 17 | 66.102.11.44 | Datacenter down |
| 18 | 66.249.89.44 | Datacenter down |
| 19 | 66.249.91.184 | Datacenter down |
| 20 | 72.14.235.44 | Datacenter down |
| 21 | 72.14.235.115 | Datacenter down |
| 22 | 209.85.135.17 | Datacenter down |
| 23 | 64.233.163.104 | Datacenter down |
| 24 | 64.233.169.19 | Datacenter down |
| 25 | 64.233.179.84 | Datacenter down |
| 26 | 72.14.203.19 | Datacenter down |
| 27 | 72.14.203.93 | Datacenter down |
| 28 | 72.14.235.104 | Datacenter down |
| 29 | 72.14.253.84 | Datacenter down |
| 30 | 209.85.135.18 | Datacenter down |
| 31 | 209.85.135.184 | Datacenter down |