765

The three-digit number 765 commonly occurs throughout the Ace Combat series. It is a reference to Namco's number (a Japanese phonetic wordplay).

Explanation
Goroawase is a where numbers, especially those with many digits, can be remembered easily by associating an abbreviated pronunciation with each digit. For example, the number 123,456 is pronounced in English as "one-hundred-twenty-three-thousand-four-hundred-fifty-six". Using Goroawase, this number can be pronounced in Japanese as "hi-fu-mi-yo-i-mu".

Using Goroawase, 7 and 6 can be pronounced as "na" and "mu" (from ), and 5 can be pronounced as "ko" (from ). Together, 765 can be pronounced in Japanese as "na-mu-ko", very close to "Namco".