China Unicom Tailband Code

China Unicom's network codes (Tailband Codes) are 460 01, 460 06, and 460 09, representing its Home Network Identity (HNI) in China.

Network Identification Codes

China Unicom uses HNI codes to identify its mobile network. These codes are a combination of the Mobile Country Code (MCC) and Mobile Network Code (MNC):

• MCC (460): Identifies the country, in this case, China.
• MNC (01, 06, 09): Identifies the specific China Unicom network operator within China. Thus, the full HNI codes for China Unicom are 46001, 46006, and 46009. These codes are essential for device compatibility, roaming, and network registration purposes .

Frequency Bands and Protocols

China Unicom operates multiple network technologies and frequency bands:

• GSM: 2 bands
• UMTS (3G): 2 bands
• CDMA: 3 bands
• LTE (4G): Multiple bands
• Protocols: GSM, UMTS, LTE, CDMA
• Country code: +86
• ISO code: CN These bands and protocols ensure broad coverage and compatibility with most modern mobile devices .

SIM Card Registration and Usage

For international visitors using China Unicom SIM cards:

• SIM cards must be registered within 7 days of purchase.
• Registration requires passport information, and for non-Chinese citizens, a Chinese visa or a selfie with the SIM card may be needed .
• China Unicom SIM numbers are 11 digits, typically starting with 130, 132, 155, or 156 .

USSD Codes and Account Management

China Unicom provides USSD codes for managing accounts, checking balances, data usage, and accessing mobile financial services. These codes are essential for:

• Checking account balance and remaining data
• Activating or deactivating services
• Changing SIM PIN
• Accessing mobile banking and wallet services These codes allow users to efficiently manage their mobile services without visiting a retail store .

Summary

The Tailband Codes for China Unicom are 46001, 46006, and 46009, which serve as the HNI for network identification. Understanding these codes, along with frequency bands, SIM registration requirements, and USSD codes, is crucial for device compatibility, roaming, and effective use of China Unicom services in China .