How to Sign Up for Anthropic’s Claude Without Using Your Own Phone Number

Introduction

Are you keen on exploring the cutting-edge AI technology of Claude by Anthropic but hesitant about sharing your personal phone number? Worry no more! This comprehensive guide will walk you through the steps to bypass SMS verification securely using MobileSMS.io’s temporary phone numbers. (Updated October 2025)

With Claude 3.5 Sonnet’s impressive capabilities and the recent launch of Claude’s computer use features in 2025, more users than ever want to access this powerful AI assistant while maintaining their privacy. Whether you’re a developer, researcher, or simply curious about AI, this guide ensures you can start using Claude without compromising your personal information.

Why Bypass SMS Verification for Claude?

1. Privacy Protection: Keep your personal number private and avoid potential spam or unwanted communications.
2. Enhanced Security: Limit the risks of sharing your personal data and reduce your digital footprint across services.
3. Global Availability: Sign up for Claude even if it’s not yet available in your country or region.
4. Multiple Accounts: Create separate accounts for different purposes (personal, business, testing) without using multiple personal numbers.
5. Temporary Testing: Perfect for developers or researchers who need temporary access for testing purposes.

What Makes Claude AI Special in 2025

Before diving into the signup process, it’s worth understanding why Claude has become such a sought-after AI assistant in 2025:

• Extended Context Window: Claude can handle up to 200,000 tokens, allowing for extensive document analysis and long conversations.
• Computer Use Capabilities: The latest beta feature allows Claude to interact with computer interfaces, making it revolutionary for automation tasks.
• Constitutional AI: Claude is trained to be helpful, harmless, and honest, making it more reliable for professional use.
• Code Generation Excellence: Superior performance in programming tasks across multiple languages.
• Multi-modal Understanding: Can process and analyze images alongside text for comprehensive assistance.

What You’ll Need

• MobileSMS.io Account: Free to create, with affordable credit options starting at just $5
• Supported IP Address: Claude is currently available in the US, UK, and over 95 countries as of 2025
• Payment Method: Credit/debit card or cryptocurrency for MobileSMS.io credits
• Valid Email Address: For your Claude account creation
• Web Browser: Chrome, Firefox, Safari, or Edge (latest versions recommended)

Pro Tip: Consider trying MobileSMS.io’s “All Services” 30-day rental plan if you need numbers for multiple AI services like Claude, ChatGPT, or Gemini – it’s more cost-effective for regular users.

Preparation: Supported IP Addresses

Before you proceed, make sure you’re using an IP address from a country where Claude is supported. As of October 2025, Claude is available in over 95 countries including the US, UK, Canada, Australia, and most of Europe. However, it’s still restricted in some regions. Here’s how to check and prepare:

1. Check Your Current IP Location: Visit whatismyipaddress.com to see your current location.
2. If Claude Isn’t Available in Your Region: Use a recommended VPN provider such as SmartProxy to connect through a supported country.
3. Choose the Right Server: For best results, connect to servers in the US (New York or California) or UK (London) for stable connections.
4. Verify Your Connection: After connecting to VPN, refresh the IP checker to confirm your new location.

Step-by-Step Guide to Using Claude Without Your Phone Number

Step 1: Create a MobileSMS.io Account for Temp SMS

Visit MobileSMS.io and sign up to get temporary phone numbers for SMS verification. The registration process takes less than 2 minutes:

1. Navigate to MobileSMS.io’s homepage
2. Click “Sign Up” in the top right corner
3. Enter your email address and create a secure password
4. Verify your email address through the confirmation link
5. Log in to your new account dashboard

Step 2: Top Up Your MobileSMS.io Account

MobileSMS.io offers flexible payment options to suit everyone’s needs. You’ll need to add credits to get temporary phone numbers:

• Credit/Debit Cards: Visa, MasterCard, American Express (instant processing)
• Cryptocurrency: Bitcoin, Ethereum, USDT, and 20+ other cryptocurrencies
• Digital Wallets: PayPal and other regional payment methods
• Minimum Top-up: Just $5 for multiple verifications

Budget Tip: A single Claude verification typically costs $2-3, but if you plan to use multiple AI services, the “All Services” monthly plan offers better value with unlimited verifications for 30 days.

Step 3: Choose Service and Country

Select “Claude” as the service and either “United States” or “United Kingdom” as the country. Then click “Request SMS Number.” Here’s what to consider:

• US Numbers: Generally more available and work reliably with Claude
• UK Numbers: Good alternative if US numbers are temporarily out of stock
• Rental Duration: Numbers are active for 20 minutes (plenty of time for verification)
• Multiple Attempts: If one number doesn’t work, you can request another at no extra charge

Step 4: Sign Up for Claude Using the Temporary Phone Number

Once you have the temporary phone number, use it to sign up for Claude. The SMS verification code will be sent to this number, bypassing the need for your personal phone number. Follow these detailed steps:

1. Go to claude.ai and click “Sign Up”
2. Enter your email address and create a password
3. When prompted for phone verification, copy the temporary number from MobileSMS.io
4. Paste the number in Claude’s phone field (ensure correct country code is selected)
5. Click “Send Code” to receive the verification SMS

Step 5: Receive the SMS Verification Code for Claude

Input the SMS verification code you received on MobileSMS.io into Claude’s verification process to complete the signup. The code typically arrives within 10-30 seconds:

1. Return to your MobileSMS.io dashboard
2. Look for the incoming SMS in your active numbers section
3. Copy the 6-digit verification code
4. Paste it into Claude’s verification field
5. Click “Verify” to complete your registration
6. You’ll be redirected to Claude’s main interface – success!

Security Best Practices

When using temporary numbers and AI services, follow these security guidelines to protect your accounts:

• Use Unique Passwords: Create a strong, unique password for your Claude account
• Enable 2FA When Available: Add an extra layer of security to your account
• Clear Browser Data: After signing up through VPN, clear cookies and cache
• Monitor Account Activity: Regularly check your Claude account for unusual activity
• Keep Credentials Secure: Never share your login details or verification codes with others

Troubleshooting

1. Error: Claude’s Services Are Not Available In Your Country: Use a supported IP address via VPN. Ensure your VPN is connected to US or UK servers and disable any browser location services.
2. Failed Verification or Code Not Received: Request a new temporary number and repeat the process. Sometimes certain number ranges work better than others. Use X-Browser if you continue having problems.
3. Account Creation Limit Reached: Claude may limit account creations from the same IP. Try again after 24 hours or use a different VPN server.
4. Number Already Used Error: This is rare but can happen. Simply request a fresh number from MobileSMS.io at no additional charge.
5. Verification Code Expired: Codes typically expire after 5 minutes. Request a new code resend in Claude’s interface.

Frequently Asked Questions

Q: Is using a temporary number for Claude legal?
A: Yes, using temporary numbers is completely legal. You’re simply protecting your privacy while complying with Claude’s verification requirements.

Q: Can I use the same temporary number for multiple services?
A: Each temporary number is single-use for one verification. However, MobileSMS.io’s “All Services” plan provides unlimited numbers for multiple verifications across different platforms.

Q: How long does my Claude account remain active?
A: Once created, your Claude account remains active indefinitely. The temporary number is only needed for initial verification.

Q: What if I need to recover my account later?
A: Account recovery typically uses email verification. However, for added security, consider keeping a record of the temporary number used (though it won’t receive future messages after expiration).

Q: Can I upgrade to Claude Pro with this method?
A: Yes, once your account is created, you can upgrade to Claude Pro using any standard payment method. The verification method doesn’t affect your ability to use premium features.

Conclusion

Congratulations, you have successfully bypassed SMS verification for Claude and created a Claude account without sharing your personal number! MobileSMS.io offers a secure, reliable way to enjoy the latest in AI technology while maintaining your privacy. With Claude’s impressive capabilities in 2025, from advanced coding assistance to computer use features, you’re now ready to explore one of the most sophisticated AI assistants available.

Remember, protecting your privacy doesn’t mean compromising on accessing cutting-edge technology. Whether you’re a developer, researcher, content creator, or AI enthusiast, this method ensures you can use Claude without exposing your personal information. Happy exploring with Claude AI!