LINE App Verification with a Virtual Number — Complete Guide 2026

LINE is far more than a messaging app. In Japan, Thailand, Taiwan, and Indonesia, it is the digital infrastructure that hundreds of millions of people rely on daily for communication, payments, news, shopping, and government services. With over 196 million monthly active users across its core markets, LINE occupies a position in East and Southeast Asia comparable to what WhatsApp holds in Europe and Latin America, or what WeChat holds in mainland China.

But there is a catch that frustrates users worldwide: LINE requires phone number verification for every new account. Unlike some messaging platforms that offer email-based registration alternatives, LINE has made phone verification mandatory, and your account is permanently bound to that number. For privacy-conscious users, travelers, expats, and anyone who needs a LINE account without exposing their personal number, this creates a real problem.

This guide provides a comprehensive walkthrough of how to verify a LINE account using a virtual phone number, which country numbers work best, and how to manage your LINE experience long-term while keeping your real number private.

LINE: The Super App Dominating Asia

To understand why LINE verification matters, it helps to understand just how deeply LINE is embedded in the daily lives of its users across Asia.

LINE in Japan

Japan is LINE's home market, and the app's penetration is staggering. Over 95 million people in Japan use LINE, which represents more than 75% of the entire population. LINE is not just a chat app in Japan; it is the primary communication channel for families, workplaces, schools, and even government agencies. During the COVID-19 pandemic, the Japanese government used LINE to distribute health surveys and vaccination information. Businesses use LINE Official Accounts to communicate with customers, and LINE Pay has become one of the country's most widely accepted mobile payment methods.

LINE in Thailand

Thailand is LINE's second-largest market, with over 54 million users. In Thailand, LINE serves as the de facto business communication tool. Small businesses conduct entire transactions through LINE chat, from product inquiries to payment confirmation to delivery tracking. LINE Man, the app's food and package delivery service, is one of the most popular delivery platforms in the country. The Thai government also uses LINE for official communications and public health announcements.

LINE in Taiwan

Taiwan has over 21 million LINE users, making it one of the highest per-capita adoption rates in the world. LINE is so dominant in Taiwan that it has largely replaced SMS and email for personal and professional communication. LINE Today, the app's integrated news service, is one of the most visited news platforms in Taiwan. LINE Pay is accepted at most retail establishments, and LINE Stickers are a cultural phenomenon.

LINE for International Users

Even outside Asia, LINE has a dedicated user base among people who communicate with contacts in Japan, Thailand, and Taiwan. Expats, international business professionals, language learners, and travelers all need LINE to stay connected. If you are doing business with Japanese companies, for instance, having a LINE account is practically a requirement. Many Japanese professionals prefer LINE over email for quick communications.

Why LINE Requires Phone Verification

LINE's phone verification requirement is more rigid than most messaging platforms. Here is why the company insists on it and what it means for users.

One Account Per Number Policy

LINE enforces a strict one-to-one relationship between phone numbers and accounts. Each phone number can be associated with only one LINE account at any given time. If you register a new account with a number that is already linked to an existing account, the old account is automatically deactivated and its data is permanently deleted. This policy is designed to prevent users from creating multiple accounts for spam or abuse, but it has significant implications for anyone who changes phone numbers or wants to maintain separate personal and professional accounts.

Identity Anchoring for Financial Services

LINE has expanded far beyond messaging into financial services, including LINE Pay, LINE Securities, LINE Insurance, and LINE Bank (in certain markets). These financial services require identity verification under local regulations, and the phone number serves as the foundational identity anchor. Even if you do not plan to use LINE's financial features, the verification infrastructure is built into the core registration flow.

Anti-Spam and Anti-Fraud Measures

LINE has struggled with spam and fraud on its platform, particularly in the form of fake accounts used for phishing, romance scams, and commercial spam. Phone verification creates a cost barrier for creating fake accounts at scale, since each account requires a unique, verifiable phone number. This is the primary reason LINE does not offer email-only registration.

Regulatory Compliance in Asian Markets

Japan's Telecommunications Business Act, Thailand's Computer Crime Act, and Taiwan's telecommunications regulations all impose varying degrees of identity verification requirements on messaging platforms. Phone number verification helps LINE maintain compliance across its key markets.

Privacy Risks of Using Your Real Number with LINE

The privacy implications of tying your real phone number to your LINE account are particularly significant given how deeply LINE integrates into daily life in its core markets.

Automatic Friend Addition

One of LINE's most controversial features is its "Auto-Add Friends" function. When enabled, LINE scans your phone's contact list and automatically adds anyone who has a LINE account as your friend. Conversely, if someone has your phone number in their contacts, they can find your LINE profile through the "Allow Others to Add" setting. This creates a situation where acquaintances, colleagues, or even strangers who happen to have your number can see your LINE profile, status, and activity.

Data Retention and Cross-Border Transfer

In 2021, LINE faced a major scandal when it was revealed that engineers in China had access to Japanese users' personal data, including messages and phone numbers. While LINE has since restructured its data handling practices, the incident highlighted the risks of entrusting a personal phone number to any platform that operates across multiple jurisdictions with varying data protection standards.

SIM-Swap Vulnerability

Because LINE accounts are bound to phone numbers, and because LINE can be used for financial transactions through LINE Pay, SIM-swap attacks targeting LINE users can have direct financial consequences. An attacker who gains control of your phone number through a SIM swap can take over your LINE account, access your chat history, and potentially use your LINE Pay balance.

Permanent Association

Unlike platforms where you can change your registered phone number at any time, LINE treats the phone number as the account identifier. Changing your number on LINE requires re-registering, which risks losing data if not done carefully. This means the number you register with initially tends to remain associated with your account indefinitely.

The Virtual Number Solution

A virtual phone number provides a clean separation between your LINE account and your personal identity. Here is why it is particularly effective for LINE.

Breaking the Contact-Graph Link

When you use a virtual number for LINE, nobody in your real-world contact list can automatically find your LINE profile. You maintain complete control over who knows about your LINE account and who can add you as a friend. This is especially valuable for people who want to keep their LINE usage private from certain colleagues, family members, or acquaintances.

Protection Against Account Takeover

Since a virtual number is not tied to a physical SIM card, it is inherently immune to SIM-swap attacks. An attacker cannot call your mobile carrier and convince them to transfer a virtual number to a new SIM, because no physical SIM exists. This provides a significant security advantage for LINE accounts, especially those linked to LINE Pay.

Why VerifySMS Works for LINE

LINE is stricter than many platforms about which phone numbers it accepts. Numbers from certain VoIP providers and free virtual number services are often rejected. VerifySMS solves this problem by providing carrier-grade numbers from real mobile operators. These numbers pass LINE's verification checks because they are indistinguishable from regular mobile numbers in the telephony network.

VerifySMS supports numbers from multiple countries, which is important for LINE because the app's behavior can vary based on the country code of the registered number. Japanese numbers unlock certain Japan-specific features and sticker shops, while US or European numbers provide a more neutral international experience.

Step-by-Step: Verify LINE with a Virtual Number

Follow this process to create and verify a new LINE account using a virtual number from VerifySMS.

Prerequisites

• An iPhone running iOS 16 or later
• The VerifySMS app installed and configured with credits
• The LINE app installed from the App Store (latest version)
• A stable internet connection

Registration Steps

1. Open VerifySMS and select LINE. Launch the VerifySMS app and find LINE in the supported platforms list. Review the available number countries and pricing. For LINE, Japanese numbers (+81) provide access to Japan-specific features, while US numbers (+1) offer broad compatibility.
2. Choose your number country and confirm. Select your preferred country and tap to purchase the number. Your dedicated virtual number will appear within seconds. Note this number carefully, including the full international dialing code.
3. Open LINE and start registration. Launch the LINE app and tap "Sign Up." LINE will ask for your phone number. Select the correct country code from the dropdown menu and enter the virtual number from VerifySMS.
4. Request the verification code. Tap "Send" to request the SMS verification code. LINE will send a 4-digit or 6-digit code to the virtual number. Wait for it to arrive in the VerifySMS app.
5. Retrieve the code from VerifySMS. Switch to the VerifySMS app. The verification code will appear in your active session, typically within 30 to 90 seconds. LINE's codes are usually delivered quickly.
6. Enter the code in LINE. Return to the LINE app and enter the verification code. LINE will confirm the number and proceed to the next registration step.
7. Set your display name and profile. Choose a display name for your LINE profile. This is the name other users will see. You can change it later. Optionally set a profile photo.
8. Configure critical privacy settings. During setup, LINE will ask if you want to enable "Auto-Add Friends" and "Allow Others to Add." Disable both of these options. You can always add friends manually later, but disabling auto-add prevents unwanted contact discovery.
9. Set a password and link an email. LINE will prompt you to create a password and optionally link an email address. Do both. The password enables login from other devices (like LINE for PC), and the email provides a recovery method independent of the phone number.
10. Complete registration. Finalize the setup. Your LINE account is now active and verified with the virtual number. Close the session in VerifySMS.

LINE Features You Can Access Without a Real Number

A LINE account verified with a virtual number provides full access to virtually all of LINE's features. Here is a breakdown of what works.

Core Messaging Features

All messaging capabilities work identically regardless of how the account was verified:

• One-on-one chats: Text, voice messages, image and video sharing, location sharing, and file transfers.
• Group chats: Create and participate in groups with up to 500 members.
• Voice and video calls: Free calls to other LINE users, including group calls with up to 500 participants.
• LINE Stickers: Full access to LINE's extensive sticker shop, including free and premium stickers. Stickers are a massive part of LINE culture, especially in Japan and Thailand.
• LINE Keep: Cloud storage for saving messages, images, and files within LINE.
• LINE Notes and Albums: Shared spaces within chats for organizing photos and notes.

LINE Timeline and VOOM

LINE VOOM (formerly LINE Timeline) is LINE's social media feed where users share posts, photos, and short videos. Your virtual-number account has full access to post, like, comment, and follow other users on VOOM.

LINE Official Accounts

You can follow and interact with LINE Official Accounts, which businesses, government agencies, celebrities, and media outlets use to communicate with their audiences. This is particularly important in Japan and Thailand, where many essential services communicate exclusively through LINE Official Accounts.

LINE Games and LINE Manga

LINE's ecosystem includes a wide range of games and entertainment services. LINE Games, LINE Manga (comic reading), LINE Music, and LINE TV are all accessible with a virtual-number account. Your game progress and purchases are tied to your LINE account, not your phone number.

LINE for PC and LINE for iPad

LINE allows you to use your account on a computer (Windows or macOS) and on an iPad simultaneously with your phone. These additional logins require your email and password, not your phone number. As long as you set up email and password during registration, multi-device access works seamlessly with a virtual-number account.

LINE Pay and Financial Services: What You Need to Know

LINE Pay is one of LINE's most important features, particularly in Japan and Thailand where it is widely accepted for in-store and online payments. Understanding how it works with virtual numbers is essential for making informed decisions.

Basic LINE Pay Functions

The basic LINE Pay wallet, which allows you to send and receive money between LINE friends, works with any verified LINE account. You can link the wallet, receive money from friends, and make transfers. However, advanced features have additional requirements.

Identity Verification for Full LINE Pay

To use LINE Pay for in-store payments, online shopping, or bank account linking, LINE requires additional identity verification beyond the phone number. In Japan, this means submitting government-issued ID (My Number Card, driver's license, or passport). In Thailand, it requires a national ID card. This identity verification is separate from the phone verification and is handled by LINE Pay's financial compliance systems.

The Practical Impact

For most international users who verify with a virtual number, LINE Pay's basic peer-to-peer transfer features are accessible. Full merchant payment and bank-linking features require local identity documents, regardless of whether you used a real or virtual phone number. In other words, the limiting factor for LINE Pay is identity documentation, not the type of phone number used for registration.

Country-Specific Guide: Japan, Thailand, and Taiwan

LINE behaves differently depending on the country code of the phone number used for registration. Here is what you need to know for each major market.

Japan (+81 Numbers)

Registering with a Japanese number unlocks several Japan-specific features and content:

• Access to the Japanese LINE Sticker Shop, which has the largest and most diverse sticker collection globally.
• LINE News and LINE Today content curated for the Japanese market.
• Ability to follow Japanese LINE Official Accounts that may be restricted to Japan-registered accounts.
• Full compatibility with Japan-based LINE Pay merchants.
• Access to LINE Shopping and other Japan-specific LINE services.

If your primary use of LINE involves communicating with people in Japan or accessing Japanese content and services, a +81 virtual number is the best choice. VerifySMS offers Japanese numbers that work reliably with LINE's verification system.

Thailand (+66 Numbers)

Thai numbers provide access to Thailand-specific LINE features:

• LINE Man delivery service integration.
• Thai LINE Official Accounts and business promotions.
• LINE TV Thailand content library.
• Thai-market LINE Pay features and merchant compatibility.

For users based in or frequently traveling to Thailand, a +66 number provides the most complete Thai LINE experience.

Taiwan (+886 Numbers)

Taiwanese numbers unlock Taiwan-specific content and services:

• LINE Today Taiwan news integration.
• Taiwan LINE Sticker Shop with locally popular sticker sets.
• Taiwanese LINE Official Accounts from local businesses and government agencies.
• LINE Pay Taiwan merchant network access.

International Numbers (US, UK, etc.)

If you do not need country-specific features, a US (+1) or UK (+44) number provides a neutral LINE experience with access to all core features. This is the best option for users who primarily want LINE for international communication and do not need market-specific content.

LINE Official Accounts and Business Use

LINE Official Accounts are a powerful tool for businesses, creators, and organizations to communicate with their audience. Understanding how they work with virtual-number accounts is important for professional users.

Following Official Accounts

Any LINE account, including those verified with virtual numbers, can follow and interact with LINE Official Accounts. You can receive messages, access menus, and use chatbot features provided by businesses, government agencies, and media outlets.

Creating an Official Account

If you want to create a LINE Official Account for your own business, the process requires a separate registration through the LINE for Business platform. This registration involves business verification that is independent of the phone number used for your personal LINE account. You can create and manage a LINE Official Account using a personal account that was verified with a virtual number.

LINE Works (Business Communication)

LINE Works (formerly LINE WORKS) is LINE's enterprise communication platform, similar to Slack or Microsoft Teams. It requires a separate registration through an organization administrator and does not depend on your personal LINE account's phone number. Users with virtual-number LINE accounts can use LINE Works normally if their organization invites them.

Troubleshooting Common LINE Verification Issues

LINE's verification system can occasionally present challenges. Here are the most common issues and their solutions.

Code Not Received

LINE typically sends verification codes within 30 to 60 seconds, but delays can occur:

• Wait at least two minutes before requesting a new code.
• Verify that the country code matches the virtual number exactly.
• Check the VerifySMS app to ensure the session is active and waiting for SMS.
• If the code does not arrive after two attempts, request a new number from VerifySMS.

"This Phone Number Is Already Registered"

This means the number was previously used for a LINE account. Since LINE enforces a one-number, one-account policy, this number cannot be used for a new account without deactivating the existing one. Request a different number from VerifySMS.

"Unable to Verify Phone Number"

LINE may reject certain number types or country codes if they have been associated with high volumes of spam. If you encounter this error, try a number from a different country. US and Japanese numbers generally have the highest acceptance rates with LINE.

Account Suspended After Registration

LINE's anti-abuse systems may suspend accounts that exhibit suspicious behavior during or immediately after registration. Avoid the following:

• Sending messages to many people immediately after creating the account.
• Joining a large number of groups within the first few hours.
• Using the account from a VPN or proxy during registration.
• Adding friends aggressively through ID search.

Use the account naturally and gradually build your friend list and activity to avoid triggering LINE's abuse detection.

Long-Term Account Management Tips

Managing a LINE account that was verified with a virtual number requires some additional attention to ensure long-term stability and access.

Set Up All Recovery Methods

Immediately after registration, go to Settings > Account and configure:

• Email: Link a reliable email address and verify it.
• Password: Set a strong, unique password.
• Facebook/Apple login: Optionally link a Facebook or Apple account for additional login methods.

These recovery methods allow you to log in on new devices without needing the original phone number.

Back Up Your Chat History

LINE allows you to back up your chat history to iCloud (on iOS) or Google Drive (on Android). Enable automatic backups to protect your conversations. Go to Settings > Chats > Chat history backup to configure this.

Keep Your Account Active

LINE may deactivate accounts that are inactive for extended periods (typically 12+ months). If you created a LINE account for future use, make sure to open the app and use it occasionally to prevent deactivation.

Plan for Device Changes

When switching to a new phone, LINE requires you to transfer your account. The transfer process can use either your phone number or your email/password. Since you may not have access to the original virtual number, always initiate the transfer using the email and password method. Go to Settings > Account Transfer on your old device to generate a transfer key.

For more guides on using virtual numbers with messaging apps, see our articles on WhatsApp verification, Telegram verification, and WeChat verification.

Conclusion

LINE's mandatory phone verification does not have to mean compromising your privacy. By using a virtual number from VerifySMS, you can create a fully functional LINE account with access to messaging, stickers, VOOM, Official Accounts, games, and even basic LINE Pay features, all without linking your personal phone number to the platform.

The process is straightforward: choose your preferred country number in VerifySMS, verify with LINE, and immediately set up email and password recovery as backup access methods. Whether you need LINE for personal communication, business in Japan or Thailand, or simply want to explore the platform without a permanent phone number commitment, a virtual number gives you the flexibility to do it on your terms.

In a world where your phone number has become one of the most powerful personal identifiers, keeping it off platforms you do not fully control is a smart privacy practice. LINE is an incredible platform with features that rival any messaging app in the world. Using it privately is now as simple as downloading VerifySMS and following the steps in this guide.

Related reading: WhatsApp Verification Guide · Telegram Verification Guide · Snapchat Verification Guide · WeChat Verification Guide · Tinder Verification Guide