The Viettel carrier from Vietnam is denoted by codes: 452 04. The followings IDs are called HNI (Home network identity). This code is created by the combination of two other Mobile Country Code (MCC) and Mobile Network Code (MNC). The first three numbers stand for the MCC and they are used in order to identify the region which the carried comes from (in the following example it’s Vietnam). The last numbers of the HNI code are equal with the MNC and this ID is given for the specific mobile network operator.
Besides Viettel Vietnam has assigned country code + 84. This number + 84 is equal with international calling code and it’s simply the telephone dialing prefixes used for calling Viettel numbers.
Viettel uses 2 GSM bands, 2 UMTS bands, 1 and 0 CDMA bands.. You can read the specific frequency bands in the table below. All bands of the Viettel are display in MHz units.
Another important information in Viettel Vietnam architectures is the standard of used protocols. It also uses 4 protocols such as GSM, UMTS, LTE, CDMA.
The ISO standard code of Viettel is VN. You can see more info about this mobile network operator at http://viettel.com.vn/. How to check Viettel coverage? How to check if your phone will work in Vietnam? Those information will help you figure out if your device will work in the Viettel roaming. Use out database and check out if your device will be locked or unlocked in Viettel.
Use our CARRIER LOOKUP TOOL in order to make sure that your phone number is using Viettel network.
If you'd like to find out whether your device is going to work with Viettel (Vietnam), please check the details below:
All you need to do is compare bands specification from your mobile network with the bands used in your device. You can check the supported bands for your phone by using out phone database.
| Name | Viettel |
|---|---|
| Company | Viettel Telecom |
| Country |  Vietnam |
| Country ISO | VN |
| Country code | + 84 |
| Carrier website | http://viettel.com.vn/ |
| Carrier codes |
|
| Mobile prefix | 3x, 5x, 7x, 8x, 9x |
| Size of NSN | 9 |
| Number format | +84 3xx xxx xxx +84 5xx xxx xxx +84 7xx xxx xxx +84 8xx xxx xxx +84 9xx xxx xxx more... |
| Coverage map | Unknown |
| Subscribers | 36 720 000 (May 2012) |
| GSM bands |
|
| GSM protocols |
|
| UMTS bands |
|
| UMTS protocols |
|
| LTE bands |
|
| LTE protocols |
|
CHECK IMEI 
