Postal code 657300 belongs to the jurisdiction of YongShan County, ZhaoTong, Yunnan, China. This page contains complete postal details, delivery branch information, and random phone number generation tools for this code.
Detailed ZIP Code Geography
The following postal codes are indexed for this geographical region.
| Postal Code | 657300 |
|---|---|
| District / Neighborhood | YongShan County (YongShan County) |
| City | ZhaoTong (ZhaoTong) |
| Province / State | Yunnan (Yunnan) |
| Country | China (CN) |
| Dialing Area Codes | 870 |
Post Offices & Branches
Below are the details of the specific delivery branches corresponding to this postal code:
| Branch Name | Business Address | Contact Phone |
|---|---|---|
| 伍寨邮政所 📍 永善县 | 云南省昭通市永善县伍寨乡街上 | 18849844439 |
| 青胜邮政所 📍 永善县 | 云南省昭通市永善县青胜乡街上 | 13887066505 |
| 细沙邮政所 📍 永善县 | 云南省昭通市永善县细沙乡街上 | 15987029782 |
| 水竹邮政所 📍 永善县 | 云南省昭通市永善县水竹乡街上 | 13388702372 |
Random Local Phone Numbers
Mock phone numbers matching local formatting and dialing area codes. (870)
Frequently Asked Questions
What is the phone number format and dialing rules for this area (postal code 657300)?
Local phone numbers follow the dialing prefix rules. Numbers generated locally are 11 digits long and utilize regional area codes: 870.
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 random 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.
How to check the specific jurisdiction or branch associated with postal code 657300?
Our website lists specific communities and delivery branch details (if any) in the details section. You can also double-check accuracy via the official query portals provided by the official postal reference sources below (such as China Post or US USPS) to ensure data is absolutely precise.
Data Verification & Reference Sources
The following official postal authorities can be used to verify the accuracy of the postal code data on this page: