Yamaguchi Yamaguchi-shi is located in Japan, with 1 representative postal codes indexed. This page provides a complete postal code list and a mock phone number generator based on local dialing rules.
Postal Codes Directory
The following postal codes are indexed for this geographical region.
Random Local Phone Numbers
Mock phone numbers matching local formatting and dialing area codes. (83) — Yamaguchi
Frequently Asked Questions
How many postal codes are indexed in this area (Minamicho, Yamaguchi-shi)?
There are currently 1 unique postal codes indexed for this city. The registered list includes: 753-0027.
What is the phone number format and dialing rules for this area (Minamicho, Yamaguchi-shi)?
Local phone numbers follow the Japanese uniform dialing format (including area code 83). The length of numbers generated here is 9 digits (excluding the leading 0, e.g., 8 digits for landlines, 9 digits for mobile phones), convenient for development testing.
Local Dialing: Within the same area, dial the standard subscriber number directly without country prefix.
International Dialing: To dial internationally, prepend the country dial code followed by the local area code and number.
Local Dialing: Within the same area, dial the standard subscriber number directly without country prefix.
International Dialing: To dial internationally, prepend the country dial code followed by the local area code and number.
What can the simulated phone numbers generated here be used for?
They are simulated data designed specifically for software development testing, QA automation workflows, form input validation (e.g., formatting mobile/landline numbers), and international compliance mock databases. Simulated phones cannot make or receive calls, nor can they receive SMS verification codes, and they cannot be used to dial real numbers.
How to verify the accuracy of the postal code data for this area (Minamicho, Yamaguchi-shi)?
You can double-check accuracy via the official query portals provided by the official postal reference sources below (such as China Post or US USPS). Our website data is periodically synchronized with these officially published directories to ensure the accuracy and timeliness of the basic codes and regional mapping data.
Data Verification & Reference Sources
The following official postal authorities can be used to verify the accuracy of the postal code data on this page: