The country code is in use for example for the two-letter suffixes such as .us (United States), .fr (France) or .de (Germany) in top-level domains (for countries) on the Internet.
Vietnam has various country codes assigned to it. The ISO 3166-1 numeric country code for Vietnam is 704. The ISO 3166-1-Alpha-2 or 2 letter country code for Vietnam is VN, while the ISO 3166-1-Alpha-3 or 3 letter country code for Vietnam is VNM.
. 182 179 464 160 93 144 247 476
vietnam country code 2 letter
