Mission 1: Lighthouse

No keypad locked doors
Mission 2: Cargo Ship

No keypad locked doors
Mission 3: Bank

Keypad to left security booth on first floor: 3624
Keypad to right security booth on first floor: 3624
Keypad to main security room: 2306
Keypad to treasurer's office: 8645
Keypad to bank's back door: 3901
Keypad before president's office: 3490
Keypad to safe in president's office: Code unknown, must be hacked
Mission 4: Penthouse

Keypad To Dvorak Room: 0280
Mission 5: Displace

Keypad to door between meeting room and lobby on second floor: 8136
Keypad to door between meeting room and lobby on first floor: 8136
Keypad to CEO's meeting room: 2346
Keypad to CEO's office: 2609
Keypad to fire escape: 3485
Keypad to central server room: 2109
Keypad to R&D server room: 9205
Mission 6: Hokkaido

No Keypad Locked Doors
Mission 7: Battery

Keypad to shipping area: 1879
Keypad to elevator: Code unknown, must be hacked
Mission 8: Seoul

No keypad locked doors
Mission 9: Bathhouse

Keypad to owner's office: 3650
Mission 10: Kokubo Sosho

Keypad To Server Room: 1945