How To Call Hanoi From Singapore
Quick Reference Summary
To call Hanoi (Vietnam) from Singapore:
- Hanoi Landline:
001 + 84 + 24 + Local Number (8 digits) - Vietnamese Mobile:
001 + 84 + Mobile Prefix (drop 0) + Mobile Number (usually 9 digits total after 84)
Examples:
- For Hanoi landline:
001 + 84 + 24 + XXXX XXXX - For a Viettel mobile:
001 + 84 + 98 + XXX XXXX(or other mobile prefix)
When it’s 12 PM (noon) in Singapore, it’s 11 AM in Hanoi (Vietnam is 1 hour behind).
How to Call a Landline in Hanoi
Calling a landline phone in Hanoi, the capital of Vietnam, from Singapore follows these steps:
- Dial Singapore’s international access code: 001 (or 002, 008 depending on your phone company)
- Dial Vietnam’s country code: 84
- Dial the Hanoi area code: 24 (The domestic code is 024, you must drop the leading 0).
- Dial the 8-digit local Hanoi phone number.
For example, if you’re calling a Hanoi number written domestically as (024) 1234 5678, you would dial 001 84 24 1234 5678 from Singapore.
How to Call a Mobile Phone in Vietnam
Calling a Vietnamese mobile phone (regardless of whether the person is currently in Hanoi or elsewhere in Vietnam) follows this format:
- Dial Singapore’s international access code: 001 (or 002, 008)
- Dial Vietnam’s country code: 84
- Dial the Vietnamese mobile prefix, making sure to drop the leading 0. (e.g., for Viettel ‘098’, just dial ’98’; for MobiFone ‘090’, just dial ’90’).
- Dial the remaining digits of the mobile number (usually 7 more digits, making 9 total after the country code).
For example, if the Vietnamese mobile number is 098 123 4567, you would dial 001 84 98 123 4567 from Singapore.
Key Point: Always omit the first ‘0’ from the Vietnamese area code (for landlines) or mobile prefix when dialing internationally.
Different Ways to Dial Internationally from Singapore
Singapore offers several international access codes depending on your provider:
- 001: SingTel
- 002: M1
- 008: StarHub
Using different codes might result in different charges from your standard phone provider. When using a phone card, such as those from Singapore Phone Cards, always use the local access number provided with the card for the most cost-effective rates.
Understanding Vietnamese Phone Numbers
Hanoi Landline Numbers
- Country Code: 84
- Hanoi Area Code: 24 (Dialed internationally after 84, dropping the ‘0’ from the domestic 024).
- Local Number Length: Usually 8 digits.
- Full international format:
+84 24 XXXX XXXX
Mobile Numbers
- Country Code: 84
- Mobile Prefixes: Start with 9, 8, 7, 5, or 3 (Dialed internationally after 84, dropping the ‘0’ from domestic prefixes like 09x, 08x, 07x, 05x, 03x).
- Remaining Digits: Usually 7 digits.
- Full international format:
+84 [Prefix without 0] XXX XXXX(Total 9 digits after 84). Common prefixes belong to networks like Viettel, MobiFone, VinaPhone, Vietnamobile, Gmobile.
Time Difference: Singapore to Vietnam
Vietnam operates on Indochina Time (ICT), which is UTC+7. Singapore operates on Singapore Standard Time (SGT), which is UTC+8.
Therefore, Vietnam (including Hanoi) is consistently 1 hour behind Singapore. Neither country observes daylight saving time.
- When it’s 1:00 PM in Singapore, it’s 12:00 PM (noon) in Hanoi.
Special Numbers to Know (Vietnam)
- Emergency Numbers:
- 113: Police
- 114: Fire
- 115: Ambulance
- These numbers cannot be dialed directly from outside Vietnam.
- Toll-Free: Numbers often start with 1800. These might not be reachable from Singapore or could incur charges.
Calling Business Extensions
When calling a business in Hanoi with an extension:
- Dial the full international number (
001 84 24 LocalNumber). - Wait for the automated system (often in Vietnamese first, sometimes with an English option) or receptionist.
- Enter the extension number when prompted.
Best Time to Call Hanoi
Since Hanoi is only 1 hour behind Singapore, calling during standard business hours is very convenient.
- Singapore Business Hours (e.g., 9 AM – 6 PM SGT) correspond to 8 AM – 5 PM in Hanoi. This provides a large window for making calls during the workday in both locations.
Call Hanoi For Less With Singapore Phone Cards
Calling Vietnam, including Hanoi, directly using standard rates can be expensive. Singapore Phone Cards offers the Long Chat Calling Card, providing competitive rates for connecting with friends, family, or business contacts in Hanoi and across Vietnam.
This card offers the same low rate for both landlines and mobiles in Vietnam.
Long Chat Calling Card – Hanoi Landline & Vietnam Mobile Rate:
- Rate: 3.5 ¢/min (SG$)
- Connection Fee: 89 ¢ per call
- Billing Increment: 3 min
| Price | Talk Time (to Hanoi Landlines & Vietnam Mobiles)* |
|---|---|
| SG$ 10.00 | 4h 19min |
| SG$ 20.00 | 9h 4min |
| SG$ 30.00 + SG$3.00 bonus | 15h 16min |
| SG$ 60.00 + SG$6.00 bonus | 30h 58min |
Talk time estimates account for the per-call connection fee. Subsequent minutes are billed at the low per-minute rate.*
Buy the Long Chat Calling Card here
Please note: Call rates and connection fees are subject to change. For the absolute latest information:
- Check latest rates for calling Vietnam Landlines here.
- Check latest rates for calling Vietnam Mobiles here.
Using our service is straightforward:
- Dial the local Singapore access number provided with your card.
- Enter your 10-digit PIN number when prompted.
- Dial the Hanoi/Vietnamese number:
- For Hanoi Landline: 84 + 24 + Local Number
- For Mobile: 84 + Mobile Prefix (no 0) + Mobile Number
Why choose Singapore Phone Cards for calls to Hanoi?
- Call over 200+ countries worldwide, including comprehensive coverage of Vietnam.
- Use the same low rates from any Singapore landline or mobile phone.
- Clear pricing with no hidden charges (connection fee is clearly stated).
- 100% prepaid service puts you in control of your spending.
- Your balance never expires, and there are no reactivation fees.
- Get your PIN and instructions instantly via email upon purchase.
- Unused credit rolls over, ensuring you get full value from your purchase.
