Japan Address Generator - Random Japanese Addresses & Postal Codes | GeoMock

The Japan address generator creates synthetic local address records with names, phone numbers, emails, and copyable JSON for forms, checkout QA, shipping validation, and regional product demos.

GeoMock follows common Japan address fields when generating test data. Current format template:

{postal_code}
{prefecture} {city}
{street}
{name}

Each generated Japan record can include a first name, last name, phone number, email, birthday, gender, country code, region, city, postal code, street, and international/local full address strings.

After generating a record in the browser, copy the summary or JSON, or save useful results locally for QA notes, bug reports, and repeatable checks.

Japan records are synthetic testing data. Use them for QA, product demos, localization review, and saved samples; do not use generated data for real deliveries, identity verification, payment circumvention, or platform rule evasion.

Japanese addresses begin with the largest division (Prefecture) and move to the smallest (Building/Room). They are traditionally written without commas when in Japanese characters.

Japan uses a 7-digit postal code format: XXX-XXXX. The first three digits specify the area, and the last four denote the district.

• Prefectures (To/Do/Fu/Ken): Japan has 47 prefectures.
• Cities (Shi), Wards (Ku), Towns (Cho/Machi), and Villages (Mura) follow the prefecture.