Postal code 400020 belongs to the jurisdiction of JiangBei District, ZhongQingChengQu, Chongqing, 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 | 400020 |
|---|---|
| District / Neighborhood | JiangBei District (JiangBeiQu District) |
| City | ZhongQingChengQu (ZhongQingChengQu) |
| Province / State | Chongqing (Chongqing) |
| Country | China (CN) |
| Dialing Area Codes | 23 |
Post Offices & Branches
Below are the details of the specific delivery branches corresponding to this postal code:
| Branch Name | Business Address | Contact Phone |
|---|---|---|
| 观音桥邮政支局（暂停） 📍 江北区 | 重庆市江北区步行街9号1-4 | 023-68750017 |
| 苗儿石邮政支局 📍 江北区 | 重庆市江北区建新西路399号附106号 | 023-67621737 |
| 鹞子丘邮政所（暂停） 📍 江北区 | 重庆市江北区小苑支路1号附1号 | 023-67516487 |
| 银鑫邮政所 📍 江北区 | 重庆市江北区渝北四村182号1-16、1-17、1-18 | 023-67869420 |
| 渝大邮政所 📍 江北区 | 重庆市江北区金源路62号附11号 | 023-67001312 |
| 鲤鱼池邮政所 📍 江北区 | 重庆市江北区建新东路43号附1号 | 023-67758351 |
| 塔坪邮政所 📍 江北区 | 重庆市江北区兴隆路46号附1,2,3号 | 023-67850355 |
| 宏帆邮政所 📍 江北区 | 重庆市重庆江北石马河宏帆路8号（伴城花苑2幢附4号、附5号、附6号、附7号） | 023-67528839 |
Random Local Phone Numbers
Mock phone numbers matching local formatting and dialing area codes. (23)
Frequently Asked Questions
What is the phone number format and dialing rules for this area (postal code 400020)?
Local phone numbers follow the dialing prefix rules. Numbers generated locally are 10 digits long and utilize regional area codes: 23.
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 400020?
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: