Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
When the launch date is 14.09.2005, and the frequency is 900mhz and 1800mhz, how many carriers are there?

### Inputs:
table_name: table, columns: ['Carrier', 'Standard', 'Frequency', 'Connection speed', 'Launch date (dd.mm.yyyy)']

### Response:
SELECT COUNT Carrier FROM table WHERE Frequency = 900MHz and 1800MHz AND Launch date (dd.mm.yyyy) = 14.09.2005