Vietnam Country Code (+84): Complete Guide to Calling Vietnam
Complete guide to Vietnam country code +84. Learn how to dial Vietnam from abroad, understand Hanoi, Ho Chi Minh City area codes, mobile carriers (Viettel, Vinaphone, Mobifone), and save money.
Quick Facts: Vietnam Country Code
| Country Code | +84 |
| International Prefix | 00 (from Vietnam) |
| Number Format | +84 XXX XXX XXXX |
| Time Zone | ICT (UTC+7) |
| Major Carriers | Viettel, Vinaphone, Mobifone |
How to Dial Vietnam
The Vietnam country code is +84. Always drop the leading 0 when calling from abroad.
From the USA
Format: 011 + 84 + number (no 0)
Example (Hanoi): 011-84-24-XXXX-XXXX
From UK/Europe
Format: 00 + 84 + number (no 0)
Example (HCMC): 00-84-28-XXXX-XXXX
Mobile Numbers
Format: +84 + 9 or 10 digit number (no 0)
Example: +84-96-XXX-XXXX (Viettel)
Vietnam Area Codes
| City | Area Code |
|---|---|
| Hanoi | 024 |
| Ho Chi Minh City | 028 |
| Da Nang | 0236 |
| Hai Phong | 0225 |
| Nha Trang | 0258 |
| Hue | 0234 |
Mobile Carriers in Vietnam
Vietnam has over 130 million mobile subscriptions. Three carriers dominate:
- Viettel (~50%): Largest carrier, military-owned, prefixes 096, 097, 098, 032-039
- Vinaphone (~25%): State-owned, prefixes 091, 094, 081-085, 088
- Mobifone (~20%): State-owned, prefixes 090, 093, 070, 076-079, 089
- Vietnamobile (~5%): Budget carrier, prefixes 092, 052, 056, 058
Zalo is King (Not WhatsApp!)
Zalo dominates Vietnam with 70+ million users - unlike most of Asia, WhatsApp is rarely used. Zalo is the local standard for messaging and voice/video calls. Ask Vietnamese contacts for their Zalo ID.
Cost to Call Vietnam
| Service | Rate |
|---|---|
| BubblyPhone | $0.02-0.06/min |
| Carrier (AT&T/Verizon) | $2.00-4.00/min |
| T-Mobile | $0.25/min or higher |
| Zalo | Free (app-to-app) |
Time Zone
Vietnam uses ICT (Indochina Time, UTC+7) year-round:
- 12 PM EST = 12 AM Vietnam (next day)
- 9 AM PST = 12 AM Vietnam (next day)
- 12 PM GMT = 7 PM Vietnam
Pro Tips for Calling Vietnam
- Drop the 0: Vietnamese numbers start with 0 domestically - remove it internationally
- Use Zalo: Not WhatsApp! Zalo is the local standard with 70M+ users
- Mobile Prefixes: 096 (Viettel), 091 (Vinaphone), 090 (Mobifone), 092 (Vietnamobile)
- Area Code Changes: Vietnam changed area codes in 2017 - verify you have updated numbers
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