Vietnam
Vietnam's $476 billion economy is one of Southeast Asia's fastest-growing markets. Get a local +84 number in Hanoi or Ho Chi Minh City and reach 100+ million consumers without opening a local office.
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| Phone Number | Type | Features | Price | Buy |
|---|---|---|---|---|
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Top Cities in Vietnam
Quick access to the most commercially relevant cities. Get a local number in any of these key markets.
Ho Chi Minh City
Vietnam's commercial and financial engine, generating roughly 25% of national GDP and home to the country's largest startup and manufacturing ecosystem.
Hanoi
The capital city and political hub, hosting headquarters of all major state-owned enterprises, foreign embassies, and Vietnam's largest concentration of government-adjacent B2B buyers.
Da Nang
Central Vietnam's fastest-growing economic zone, known for its IT parks, tourism infrastructure, and designation as a key smart city pilot under the national digital transformation agenda.
Hai Phong
Vietnam's primary northern seaport and a critical logistics and heavy manufacturing hub, with rapid FDI inflows from South Korean and Japanese industrial firms.
Can Tho
The economic and administrative center of the Mekong Delta region, pivotal for agri-food processing, rice export operations, and regional distribution networks.
Bien Hoa
One of Vietnam's largest industrial cities, home to massive export processing zones that attract Samsung, Bosch, and dozens of other multinational manufacturers.
Why Expand Your Business to Vietnam?
Vietnam has gone from a closed agrarian economy to one of Southeast Asia's most compelling investment destinations in under three decades. GDP reached $476 billion in 2024 and FDI hit an all-time high of $25.35 billion that same year - up 9.4% year on year. Electronics, textiles, manufacturing, and IT outsourcing are core pillars, and Vietnam has become the direct beneficiary of the 'China+1' diversification strategy as global supply chains restructure. Samsung alone accounted for roughly 15% of all Vietnamese exports. This is a market you can't afford to ignore.
Breaking into Vietnam without a local presence is an uphill battle. Vietnamese businesses and consumers strongly prefer picking up calls from recognizable local numbers - an unfamiliar international prefix is the fastest way to get ignored. A virtual +84 number from Hanoi (024) or Ho Chi Minh City (028) eliminates that friction instantly. Your team can work from anywhere while appearing local, building credibility from the very first call. Pair that with FoneSwift's AI voice agents and power dialing, and your team can run high-volume outreach into Vietnam without ever setting up a physical office.
Outbound Sales & Lead Qualification
Run high-volume outbound campaigns into Vietnamese prospects using local HCMC or Hanoi numbers. Local caller IDs dramatically improve answer rates in a market where unknown international numbers are routinely dismissed.
Customer Support Hotlines
Deploy a 1800 toll-free number as your national support line, routed to your global contact center with full IVR and queue management. Vietnamese customers won't hesitate to call when it's free and familiar.
E-Commerce Order Management
Automate order confirmation, delivery update, and return processing calls using FoneSwift AI voice agents - reducing agent workload while keeping response times instant for Vietnam's demanding online shoppers.
Supplier & Vendor Coordination
Manufacturing firms use local Vietnamese numbers to maintain ongoing communication with in-country factories and logistics partners, ensuring calls are answered promptly rather than filtered as spam from abroad.
SMS Marketing & Notifications
Send appointment reminders, OTP codes, and promotional messages via two-way SMS on Vietnamese numbers - subject to Decree 91/2020 compliance. FoneSwift handles Do-Not-Call screening and message delivery tracking.
Businesses Using Vietnam Phone Numbers
Vietnam's economy spans manufacturing, fintech, e-commerce, IT services, and tourism - all sectors where a recognizable local phone number is the difference between a prospect who picks up and one who ignores your call.
Manufacturing & Industrial
Global manufacturers running supplier coordination, procurement, or quality assurance operations across Vietnam's industrial zones in Binh Duong, Dong Nai, or Hai Phong use local numbers to maintain seamless on-the-ground communication without embedding expensive in-country teams.
E-Commerce & Retail
Cross-border sellers on Shopee, Lazada, and TikiNow use local Vietnamese numbers for order confirmation calls, return management, and customer support - because Vietnamese shoppers are far more likely to engage with a recognizable 028 or 024 caller ID than an overseas number.
IT Outsourcing & BPO
Vietnam is one of Asia's top software outsourcing destinations. International tech firms and BPOs use HCMC and Hanoi local numbers to manage client-facing communications, recruit local developers, and coordinate between offshore and onshore teams.
Financial Services & Fintech
Banks, payment gateways, and lending platforms operating in Vietnam use local numbers for KYC verification calls, loan disbursement confirmations, and customer support - all of which require a trusted local caller ID to achieve acceptable answer rates.
Real Estate & Property Development
Foreign property developers and investment groups active in Vietnam's booming real estate markets use city-specific numbers to run inbound lead lines, qualify buyers, and coordinate with local agents - making them appear established in-market.
Tourism & Hospitality
International hotel chains, tour operators, and travel platforms serving the 21+ million annual visitors to Vietnam use local Da Nang and HCMC numbers for reservations, concierge support, and travel assistance lines that locals and regional tourists trust.
Education & EdTech
Online learning platforms and international universities expanding into Vietnam use local numbers for admissions inquiries, enrollment support, and student communications - a market driven by Vietnam's young, ambitious, and heavily mobile-connected population.
About Vietnam Phone Numbers
Vietnam's telecommunications landscape has undergone a remarkable transformation. The country completed its migration to a standardized 10-digit national dialing format in 2018, and Telecommunications Law No. 24/2023/QH15, which took effect on July 1, 2024, now governs the entire industry - covering OTT services, cloud platforms, data handling, and provider licensing. The market is dominated by three main carriers: Viettel (state-owned, the largest), Mobifone, and Vinaphone (under VNPT). Vietnam also shut down its 2G network in October 2024, pushing over 10 million users onto 4G and accelerating 5G rollout in major urban centers.
FoneSwift gives your business fast access to Vietnam's numbering infrastructure without the complexity of navigating local carrier relationships or regulatory paperwork on your own. We offer local geographic numbers for key commercial cities including Ho Chi Minh City (028), Hanoi (024), Da Nang (0236), Hai Phong (0225), and more - plus national 1800 toll-free numbers for a coast-to-coast customer service presence. All numbers are cloud-managed, with full support for inbound and outbound voice, AI-powered IVR, call recording, and two-way SMS messaging. Activation is completed within 1-3 business days after KYC documents are verified.
Compliance is non-negotiable in Vietnam. Businesses must screen marketing contact lists against the MIC's national Do-Not-Call Register before running any outbound voice or SMS campaign. Advertising and telemarketing calls are restricted to 8:00 AM - 5:00 PM local time (ICT, UTC+7). Decree 91/2020/ND-CP sets stiff financial penalties for violations. FoneSwift integrates Do-Not-Call screening and call scheduling guardrails directly into campaign workflows, so your Vietnam outreach stays compliant from day one - without slowing your team down.
| Capital | Hanoi |
| Population | 101.6 million |
| Largest Cities | Ho Chi Minh City, Hanoi, Da Nang, Hai Phong, Can Tho, Bien Hoa |
| Timezone | Asia/Ho Chi Minh (ICT (UTC+7)) |
Interesting Facts about Vietnam
Discover what makes Vietnam unique and why local phone numbers matter for your business.
Vietnam Has No Daylight Saving Time - Ever
Vietnam operates on a single, fixed timezone - Indochina Time (ICT), UTC+7 - year-round with no daylight saving adjustments. This makes scheduling calls across Vietnamese business hours simple and predictable for international teams, with no seasonal clock-change surprises.
The 10-Digit Number Migration Happened in 2018
Prior to November 15, 2018, millions of Vietnamese mobile subscribers used 11-digit numbers. The Ministry of Information and Communications mandated a nationwide migration to standardized 10-digit mobile numbers in a single rollout - one of the largest renumbering events in Southeast Asian telecom history.
Viettel Operates in 10 Countries Beyond Vietnam
Vietnam's largest telecom operator, Viettel - which is state-owned by the Ministry of National Defence - has expanded into 10 countries across Asia, Africa, and Latin America. It's one of the few state military-backed telcos to achieve significant commercial success internationally.
Vietnam Killed 2G in 2024 During a Typhoon Recovery
Vietnam's scheduled 2G network shutdown on September 16, 2024 was postponed to October 15, 2024 after Typhoon Yagi caused widespread infrastructure damage. When it finally went offline, over 10 million users had to migrate to 4G/5G - one of the fastest forced network transitions in the region.
Zalo Outranks WhatsApp for Business Messaging
Unlike most markets where WhatsApp dominates business messaging, Vietnam is dominated by Zalo - a homegrown super-app with over 74 million registered users. Vietnamese businesses integrate phone numbers with Zalo for customer engagement, making local number presence even more critical for trust.
A New Telecom Law Reshaped the Entire Industry in 2024
Telecommunications Law No. 24/2023/QH15, which took full effect on July 1, 2024, was Vietnam's first comprehensive telecom law overhaul in over a decade. It introduced new obligations for OTT providers, cloud service operators, and foreign VoIP platforms operating within Vietnamese borders - raising the compliance bar for all virtual number providers.
Virtual Number Types in Vietnam
Every business has unique needs. Choose the perfect telephony footprint in Vietnam to maximize local trust, nationwide reach, or high-volume SMS.
Local Numbers
Geographic numbers tied to specific provinces and cities across Vietnam. Each area uses a distinct prefix - for example, 024 for Hanoi and 028 for Ho Chi Minh City - creating an immediate regional identity for your business.
Best for businesses targeting specific cities or provinces, such as a Hanoi-based B2B sales operation or a customer support line for HCMC e-commerce shoppers.
Toll-Free Numbers (1800)
Non-geographic 1800 numbers that are free for Vietnamese callers to dial from both landlines and mobile phones anywhere in the country. These signal national reach and customer-first service.
Best for national customer service hotlines, government-adjacent services, and enterprises wanting a single point of contact across all 63 provinces.
National Numbers
Non-geographic numbers that are not tied to any specific province or city, accessible from anywhere within Vietnam without implying a regional affiliation.
Best for companies operating nationwide - logistics providers, fintech platforms, or insurance firms - that want a single recognizable number without a regional implication.
Mobile Numbers
Vietnamese mobile numbers carrying the standard 10-digit mobile format (e.g., 03x, 07x, 08x, 09x prefixes). Mobile caller IDs typically achieve higher answer rates than fixed lines among Vietnamese consumers.
Best for outbound sales teams, WhatsApp/Zalo-style two-factor authentication, and SMS-heavy outreach campaigns targeting Vietnamese mobile subscribers.
How to Call Vietnam
Navigating international exit codes and local trunks can be confusing. Use our definitive dialing cheat sheet to ensure your calls connect every time.
Dialing Format Reference
+84 (Area Code without 0) XXXX XXXXDial the exit code from your country, then +84, then drop the leading 0 from the Vietnamese area code or mobile prefix, followed by the subscriber number. Example: calling an HCMC number locally dialed as 028 3456 7890 becomes +84 28 3456 7890.
0 (Area Code) XXXX XXXXDial the trunk prefix 0, followed by the city area code and the subscriber number. Example: 024 3456 7890 for a Hanoi landline. Vietnam completed its migration to 10-digit dialing in 2018.
0XX XXXX XXXXMobile numbers use a 10-digit format starting with 0 and a carrier-specific prefix. Viettel uses 032-039, 086, 096-098; Mobifone uses 070, 076-079, 089, 090, 093; Vinaphone uses 081-085, 088, 091, 094.
1800 XXXXDial 1800 followed by the 4-digit subscriber number. These calls are free for the caller from any landline or mobile phone within Vietnam. Not accessible from international numbers.
Regulatory Requirements in Vietnam
Ensure smooth operations by understanding the local Know Your Customer (KYC) laws and required documentation for acquiring numbers in Vietnam.
Local Regulations
Key restrictions and use cases.
Local Geographic Numbers
KYC documentation is required by Vietnamese carriers to provision local DID numbers. Businesses must submit a company registration certificate, a government-issued ID for the authorized representative, and proof of the company's registered address. Activation typically takes 1-3 business days after documents are approved.
Toll-Free Numbers (1800)
Vietnam 1800 toll-free numbers also require KYC verification - specifically company registration documents and representative identification. Once approved, these numbers are reachable from landlines and mobile phones within Vietnam only. Calls from outside Vietnam are not supported on toll-free prefixes.
Do-Not-Call & Anti-Spam Compliance (Outbound Calls & SMS)
Decree 91/2020/ND-CP governs anti-spam rules for marketing calls and messages. Businesses must screen all contact lists against the national Do-Not-Call Register managed by the Ministry of Information and Communications (MIC) before any outbound marketing campaign. Advertising calls are restricted to 8:00 AM - 5:00 PM local time. Violations carry fines of VND 80-100 million per incident (approximately $3,200-$4,000 USD).
Telecom Law No. 24/2023/QH15
Vietnam's Telecommunications Law, effective July 1, 2024, and its implementation decree (163/2024/ND-CP, effective January 1, 2025) govern OTT services, data handling, and provider responsibilities. Businesses using VoIP or cloud-based voice platforms must ensure their provider complies with MIC licensing and data localization obligations.
Required Documents
Checklist for provisioning.
What you need to get a Vietnam number:
- Company registration certificate (Business License)
- Authorized representative government-issued photo ID (passport or national ID)
- Proof of company registered address (utility bill or official business document)
- Company name, registration number, and registered address on file
- Name, email, and direct phone number of the authorized representative
Get your Vietnam phone number today
Why Choose Vietnam Phone Number for Your Business?
Discover the advantages of having a local phone number that builds trust, increases engagement, and drives results.
Powerful Features for Your Vietnam Phone Number
Get the most out of your phone number with FoneSwift's enterprise-grade features designed to help your business communicate more effectively.
How to Get a Vietnam Phone Number
Buying a Vietnam phone number using FoneSwift is easy and takes just a few minutes. Follow these simple steps to get your Vietnam phone number and start connecting with customers in Vietnam today.
Create a new account on FoneSwift or sign in to your existing account to get started.
Once logged in, you'll be taken to your FoneSwift dashboard where you can manage all your phone numbers and settings.
Click on Settings in the sidebar, then go to "My Numbers" and click the "Add a Number" button.
Choose Vietnam as your country from the dropdown menu.
Select the type of number, then choose the Vietnam country from the available options.
Click the "Search" button to see all available phone numbers with the selected area code.
Browse through the available numbers, select one that fits your needs, click "Buy Number", and confirm your purchase.
Your number is now active! Start making and receiving calls from the FoneSwift Dialer immediately.
You can configure your number to handle calls, forward calls, or even create an AI voice agent to handle the calls for you.
Frequently Asked Questions
Common questions about virtual phone numbers in Vietnam
Do I need a local Vietnamese office or address to get a Vietnam virtual phone number?
What documents are needed to buy a Vietnam phone number?
Can I send and receive SMS on Vietnam virtual numbers?
How long does it take to activate a Vietnam phone number?
What is the time zone in Vietnam, and does it observe DST?
Can Vietnam toll-free 1800 numbers receive calls from outside Vietnam?
Should I get a local or toll-free number for my Vietnam business?
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