Japan Address Generator Japan Address Generator

Which regions of Japan does the Japan Address Generator support generating addresses for?

The tool covers all 47 prefectures of Japan, and can be quickly filtered by the six major regions, making it convenient to generate addresses in a targeted way for business scenarios:

Kanto Region (Kanto): Japan's political and economic center, including Tokyo Metropolis, Kanagawa Prefecture, Chiba Prefecture, Saitama Prefecture, Ibaraki Prefecture, Tochigi Prefecture, and Gunma Prefecture. Tokyo's phone area code is 03, Yokohama is 045, and Chiba is 043. It is Japan's most densely populated and commercial region.

Kansai Region (Kansai): A major center of traditional Japanese culture, including Osaka Prefecture, Kyoto Prefecture, Hyogo Prefecture, Nara Prefecture, Shiga Prefecture, and Wakayama Prefecture. Osaka's phone area code is 06, Kyoto is 075, and Kobe is 078, forming the Keihanshin metropolitan area.

Chubu Region (Chubu): The heartland of Japanese manufacturing, including Aichi Prefecture, Shizuoka Prefecture, Nagano Prefecture, Gifu Prefecture, Niigata Prefecture, Toyama Prefecture, and Ishikawa Prefecture. Nagoya's phone area code is 052, Shizuoka is 054, and it is home to the headquarters of major companies such as Toyota and Honda.

Hokkaido & Tohoku: The northern region of Japan, including Hokkaido, Miyagi Prefecture, Aomori Prefecture, Iwate Prefecture, Akita Prefecture, Yamagata Prefecture, and Fukushima Prefecture. Sapporo's phone area code is 011, and Sendai is 022. It is nationally known for snow scenery, hot springs, agriculture, and seafood.

Chugoku & Shikoku: Western Honshu and Shikoku Island, including Hiroshima Prefecture, Okayama Prefecture, Yamaguchi Prefecture, Tottori Prefecture, Shimane Prefecture, Tokushima Prefecture, Kagawa Prefecture, Ehime Prefecture, and Kochi Prefecture. Hiroshima's phone area code is 082, and Takamatsu is 087. The Seto Inland Sea runs through the area.

Kyushu & Okinawa: The southwestern end of Japan, including Fukuoka Prefecture, Kumamoto Prefecture, Kagoshima Prefecture, Nagasaki Prefecture, Oita Prefecture, Miyazaki Prefecture, Saga Prefecture, and Okinawa Prefecture. Fukuoka's phone area code is 092, and Naha is 098. Okinawa is known for its subtropical island scenery.

What fields does the Japan Address Generator support generating?

Each generation outputs a complete set of address and identity fields. Each field follows common format specifications, and can remain geographically consistent with the selected prefecture and city/ward/town/village:

• Last Name / Surname 90% probability of kanji (such as 佐藤, 鈴木, 高橋), 10% probability of hiragana (such as さとう).
• First Name / Given Name 60% kanji (such as 太郎, 花子), 20% hiragana, 20% katakana, consistent with gender.
• Gender Outputs Male / Female, consistent with the name database.
• Phone Format 0X-XXXX-XXXX, 10 digits total, with the area code corresponding to the selected prefecture, such as 03-1234-5678 (Tokyo), 06-1234-5678 (Osaka).
• Email Romanized name + random digits + common Japanese domains, such as [email protected], avoiding non-ASCII characters.
• Street Address / Banchi Format is "chome + ban + go", such as 1-2-3, Marunouchi 1-2-3.
• City A city/ward/town/village matching the selected prefecture, such as Shibuya Ward, Chuo Ward, Kita Ward.
• Prefecture Outputs the full Japanese name, such as Tokyo Metropolis, Osaka Prefecture, Hokkaido, Okinawa Prefecture.
• Postal Code Japanese standard postal code format 〒XXX-XXXX, with the first 3 digits corresponding to the prefecture prefix, such as 〒100-0001.
• Full Address Complete concatenated format: 〒PostalCode PrefectureCityWardTownVillageBanchi, such as 〒100-0001 Tokyo Metropolis Chiyoda Ward Marunouchi 1-2-3.
• Date of Birth Format MM/DD/YYYY, with age falling between 20 and 50, such as 07/18/1989.
• Occupation Common English occupation names, such as Software Engineer, Accountant, Designer.
• My Number 12 digits, format XXXX-XXXX-XXXX, with the last digit being the mod-11 weighted check digit, conforming to the rules of Japan's Ministry of Internal Affairs and Communications.
• Card Number 16 digits (15 digits for American Express), conforming to the Luhn checksum algorithm, such as 4539 1488 0343 6467.
• Card Type Outputs Visa, MasterCard, American Express, or Discover.
• Expiration Date Format MM/YY, a random date within the next 1–5 years, such as 08/29.
• CVV Security Code 3 digits; if the card type is American Express, 4 digits are output.

How do you use the Japan Address Generator?

The core area of the page consists of a control panel and a results display, with a clear and intuitive workflow:

① Select Prefecture: The top provides a dropdown popup selector, with "🎲 Random Prefecture" selected by default. After clicking to expand, you can browse by the six major region tabs, or directly enter Chinese, Japanese, or English keywords (such as "Tokyo," "とうきょう") in the search box for cross-region search. Each row in the list displays the Chinese name, Japanese name, and prefecture code at the same time, making it easy to locate quickly.

② Generate Address: Click the "Generate Address" button, and the system will randomly combine a record based on the selected prefecture's public geographic information, simultaneously generating a Japanese name, phone, email, My Number personal identification number, and credit card information, with results displayed in four sections: "Basic Information / Address Details / Identity Information / Credit Card Information."

③ Copy / Export / Favorite: Click the "Copy Result" button to copy the current record at once in "Label: Value" format; click "Export Excel" to save it as a CSV file; click "Favorite Address" to save the record to the browser's local storage. Click "View Favorites" to switch to the favorites list view. Each record supports single-item copy and delete, and can also be exported to Excel in batch.

All favorites data is stored locally in the browser via localStorage and will remain after the page is closed, with nothing uploaded to any server.

Data Accuracy of the Japan Address Generator

The data output by this tool is simulated data with formats that conform to Japanese address specifications and content that is random and virtual. Prefecture names, city/ward/town/village names, postal code prefixes, and phone area codes are all generated based on public geographic information, and the geographic correspondences and coding rules conform to Japanese address formats; names, dates of birth, My Number personal identification numbers, credit card numbers, CVV, and other fields are all generated by random algorithms. All data is randomly generated locally in the front end, suitable for development integration, test filling, UI demos, data anonymization, and script writing.

Application Scenarios for the Japan Address Generator

• Front-End / Back-End Form Integration Quickly fill in forms such as Japanese shipping addresses and billing addresses, and validate postal code formats, prefecture linkage, and address validation logic.
• Cross-Border E-Commerce Checkout Demos Construct localized test addresses for Japanese sites, and test shipping calculation, logistics zoning, and consumption tax display and other localized features.
• Database and Test Data Filling Batch favorite records and export them to Excel for loading into a test database, simulating the address distribution of Japanese users.
• UI Prototypes and Screenshot Demos Provide Japanese placeholder text with standard-compliant length and format for design drafts and demo videos, avoiding obvious fake data.
• API Automation Testing Continuously provide non-repeating Japanese address and identity parameters for API regression and stress testing, reducing the probability of data conflicts.
• Privacy Protection In unnecessary form-filling scenarios, replace real personal information with randomly generated results to avoid privacy leaks.