| Identifying Skype Nodes in the Network Exploiting Mutual Contacts Recent countries visiting this post |  |
 | 9 | United States |
 | 7 | |
 | 3 | Germany |
 | 1 | China |
 | 1 | Italy |
| Identifying Skype Nodes in the Network Exploiting Mutual Contacts Recent countries visiting this post | |
| 9 | United States |
| 7 | |
| 3 | Germany |
| 1 | China |
| 1 | Italy |