| Company | LEHMAN BROTHERS VENTURE PARTNERS L.P. |
| Business Number | 2462800 |
| Company | LEHMAN BROTHERS VENTURE GP PARTNERSHIP L.P. |
| Business Number | 2454018 |
| Company | LEHMAN BROTHERS COMMUNICATIONS FUND L.P. |
| Business Number | 2451090 |
| Company | LEHMAN BROTHERS COMMUNICATIONS PARTNERS L.P. |
| Business Number | 2451063 |