This is the telephone area code for Otsu City-the capital of Shiga Prefecture, located on the southern shore of Lake Biwa, Japan's largest freshwater lake, and just east of Kyoto.
How to Call Otsu from Overseas
- Dial your country's exit code (International Access Code)
- Dial 81 (Japan country code)
- Dial the area code (77 - without the leading 0)
- Dial the local phone number
Example: Calling Otsu from the United Arab Emirates
00 81 77 123 4567
Where:
00 = UAE exit code
81 = Japan country code
77 = Otsu area code (077 without the 0)
123 4567 = Local Otsu phone number
Quick Facts
Otsu Area Code Coverage
The 077 area code covers Otsu City and parts of central Shiga Prefecture:
Otsu City Center
Otsu Station, downtown shopping streets, Omi Shrine
Lake Biwa Shore
Scenic waterfront, Hama-otsu, and Biwako Otsu Pavilion
East Otsu
Residential zones near Kyoto border (e.g., Ishiyama)
West Otsu
Hieizan Enryaku-ji access areas, mountain foothills
South Otsu
Industrial and educational districts near Rokkaku
Greater Shiga
Kusatsu (077-5xx), Moriyama (077-5xx), and Ritto use adjacent codes
Major Japan Area Codes
Common Exit Codes for Calling Japan
When calling Otsu from these countries, use these exit codes:
United States
011
Australia
0011
European Union
00
Japan
010
China
00
Canada
011