Prefix 7 a Vietnam
Bayanan prefix 7 kamar yadda aka wallafa a tsarin lambobi na hukuma na Vietnam — rabon asali ne, ba mai ɗaukar kaya na yanzu na wata takamaiman lamba ba, tunda ana iya canja lambobi.
- Mai ɗaukar kaya (rabon asali)
- MobiFone
- Nau'in layi
- Wayar hannu
- Misalin salo
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