Postal code 550399 belongs to the jurisdiction of KaiYang County, GuiYang, Guizhou, 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 | 550399 |
|---|---|
| District / Neighborhood | KaiYang County (KaiYangXian County) |
| City | GuiYang (GuiYang) |
| Province / State | Guizhou (Guizhou) |
| Country | China (CN) |
| Dialing Area Codes | 851 |
Post Offices & Branches
Below are the details of the specific delivery branches corresponding to this postal code:
| Branch Name | Business Address | Contact Phone |
|---|---|---|
| 正街邮政支局 📍 开阳县 | 开阳县正街10号 | 18685058138 |
| 城关邮政支局 📍 开阳县 | 开阳县城关镇人民西路70号 | 15108515688 |
| 政务中心邮政所（假期营业） 📍 开阳县 | 贵州省贵阳市开阳县贵州省开阳县麒麟广场政务大厅内 | 13765807994 |
| 毛稗田邮政所 📍 开阳县 | 贵州省贵阳市开阳县云开街道办东山村毛稗田2号楼一楼门面 | 13595027118 |
Random Local Phone Numbers
Mock phone numbers matching local formatting and dialing area codes. (851)
Frequently Asked Questions
What is the phone number format and dialing rules for this area (postal code 550399)?
Local phone numbers follow the dialing prefix rules. Numbers generated locally are 11 digits long and utilize regional area codes: 851.
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 550399?
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: