Post office in Bãi Cháy
Add: Intersection of Vườn Ðào and Hạ Long St., Hạ Long City
Tel: (84-33) 840 400     

Post Office in Hòn Gai
Add: Lê Thánh Tông St., Hạ Long City     
Tel: 825 925

Useful Telephone Number:

Domestic long distance telephone code:  0
International Telephone code:  00
Domestic long distance telephone service:  101
General information service:  1080
International Telephone service:  110
Police:  113
Ambulance:  114
Fire brigade:  115
Phone number inquiries:  116  
Send Message Service:  105, 106, 107