0	National Domestic Direct Dialing Access Code
00	International Direct Dialing Access Code
101	Domestic Long Distance Telephone Service
105	Vietnam Paging Service (in English)
106	Paging Service Enquiries
107	Vietnam Paging Service (in Vietnamese)
1080	Social and Cultural Information Clearing up Queries Service
1081	Talking Yellow Pages
1088	Connecting Customers to Consultants in the fields of healthcare, nutrition, drug preventive measures, law, informatics, construction, tourism, estate trading, education and training, intellectual property, love-marriage-family matters
110	International Telephone Service
113	Police
114	Fire Brigade
115	Ambulance
116	Phone Number Enquiries
117	Time Inquiries
118	Ring Back Test
119	Advice on Telephone Repairs
133 / 131	Hanoi ABC Paging Service
141	Vinaphone Paging Service
142	International Telephone Service Rate
143	International Telephone Service Enquiries