Introduction

Google is quietly changing how it handles phone numbers across your accounts. A new setting now automatically links your phone number to every Google account you're signed into, and you have to actively opt out if you don't want that.

What Happened

In August and October 2025, Google shifted the Verify phone numbers automatically setting to default opt-out. That means your phone number gets attached to all your current and future Google accounts on the device. Google periodically re-verifies these numbers, which could result in carrier charges.

Why This Matters

The change affects privacy and costs. Your phone number becomes the default link across all your accounts, which Google says helps with account recovery, faster sign-ins, and location services. However, it also enables more targeted advertising and could surprise users who didn't consent to the automatic linking.

Key Takeaways

  • Google auto-links phone numbers to all signed-in accounts starting in 2025.
  • The Verify phone numbers automatically setting is now opt-out.
  • Re-verification may incur carrier fees.
  • Google cites recovery, speed, and ad optimization as reasons.
  • Users can disable the feature via Settings > Google > All Services > Privacy & Security.

Conclusion

Google's new phone number policy affects every signed-in account on your device. If you value privacy or want to avoid potential carrier charges, you can disable the feature in your Google settings. Staying informed helps you control what data gets linked across your accounts.