| | AMSTAR COMMUNICATIONS CORP | — | FSS | $0 | — | — | — | — | 5895MISCELLANEOUS COMMUNICATION EQUIPMENT | Apr 27, 1999 | Apr 27, 1999 | — |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | INTERNAL REVENUE SERVICE | — | — | — | 6070FIBER OPTIC ACCESSORIES AND SUPPLIES | Jul 15, 1998 | Jul 15, 1998 | Sep 15, 1998 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | FEDERAL ACQUISITION SERVICE | — | — | — | 5805TELEPHONE AND TELEGRAPH EQUIPMENT | May 15, 1998 | May 15, 1998 | Jun 15, 1998 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | OFFICES, BOARDS AND DIVISIONS | — | — | — | 5805TELEPHONE AND TELEGRAPH EQUIPMENT | Dec 15, 1997 | Dec 15, 1997 | Sep 15, 1998 |
| | AMSTAR COMMUNICATIONS CORP | — | FSS | $0 | — | — | — | — | 7035 | Oct 15, 1997 | Oct 15, 1997 | Nov 15, 1997 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | VETERANS AFFAIRS, DEPARTMENT OF | — | — | — | J058 | Oct 15, 1997 | Oct 15, 1997 | Sep 15, 1998 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | 7010 | Sep 15, 1997 | Sep 15, 1997 | Nov 15, 1997 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | 5805TELEPHONE AND TELEGRAPH EQUIPMENT | Aug 15, 1997 | Aug 15, 1997 | Sep 15, 1997 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | 5805TELEPHONE AND TELEGRAPH EQUIPMENT | Jun 15, 1997 | Jun 15, 1997 | Aug 15, 1996 |
| | AMSTAR COMMUNICATIONS CORP | — | FSS | $0 | — | — | — | — | 5830INTERCOMMUNICATION AND PUBLIC ADDRESS SYSTEMS, EXCEPT AIRBORNE | May 20, 1997 | May 20, 1997 | — |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | 5805TELEPHONE AND TELEGRAPH EQUIPMENT | Mar 15, 1997 | Mar 15, 1997 | Jun 15, 1997 |
| | AMSTAR COMMUNICATIONS CORP | — | FSS | $0 | — | — | — | — | 5805TELEPHONE AND TELEGRAPH EQUIPMENT | Feb 25, 1997 | Feb 25, 1997 | — |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | S113 | Sep 15, 1996 | Sep 15, 1996 | Aug 15, 1997 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | 5805TELEPHONE AND TELEGRAPH EQUIPMENT | Jul 15, 1996 | Jul 15, 1996 | Aug 15, 1996 |
| | AMSTAR COMMUNICATIONS CORP | — | FSS | $0 | FEDERAL ACQUISITION SERVICE | — | — | — | 7035 | Jun 15, 1996 | Jun 15, 1996 | Sep 15, 2000 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | 7035 | May 15, 1996 | May 15, 1996 | Jun 15, 1996 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | SBA | — | 7035 | Mar 15, 1996 | Mar 15, 1996 | Apr 15, 1996 |
| | AMSTAR COMMUNICATIONS CORP | — | FSS | $0 | FEDERAL ACQUISITION SERVICE | — | — | — | — | Mar 15, 1996 | Mar 15, 1996 | — |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | 5895MISCELLANEOUS COMMUNICATION EQUIPMENT | Nov 15, 1995 | Nov 15, 1995 | Nov 15, 1995 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | S113 | Aug 15, 1995 | Aug 15, 1995 | Sep 15, 1995 |
| | AMSTAR COMMUNICATIONS CORP | — | FSS | $0 | INFORMATION TECHNOLOGY SERVICE | — | — | — | — | Mar 15, 1995 | Mar 15, 1995 | — |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | D399 | Mar 15, 1994 | Mar 15, 1994 | Dec 15, 1995 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | 5805TELEPHONE AND TELEGRAPH EQUIPMENT | Nov 15, 1993 | Nov 15, 1993 | Dec 15, 1993 |
| | AMSTAR COMMUNICATIONS CORP | — | IDC | $0 | — | — | — | — | 5805TELEPHONE AND TELEGRAPH EQUIPMENT | Sep 15, 1992 | Sep 15, 1992 | — |