Does ARIN work with authenticator apps like MS Authenticator App?

Yes. ARIN supports TOTP authenticator apps, so you can generate its two-factor codes in MS Authenticator App.

Is ARIN two-factor authentication free?

Yes. Enabling authenticator-app 2FA on ARIN is free — you only need the free MS Authenticator App.

What if I lose access to my ARIN 2FA codes?

Use the backup or recovery codes you saved during setup. If you didn't save them, contact ARIN support to regain access, then re-add the account to MS Authenticator App.

How to enable 2FA on ARIN

← ARIN overview Supported

ARIN lets you secure your account with an authenticator app. With 2FA on, each login needs a fresh 6-digit code, keeping your ARIN account safe even if your password leaks.

Step-by-step setup

1
Sign in to ARIN and open your ARIN account security settings.
2
Turn on two-factor authentication and choose the authenticator-app option.
Look for "Authenticator app", "Authentication app", or "TOTP" rather than SMS.
3
Scan the QR code with MS Authenticator App.
Open MS Authenticator App, tap add, and point your camera at the QR code ARIN displays. Can't scan? Enter the setup key manually instead.
4
Enter the 6-digit code to confirm.
Type the code MS Authenticator App generates to verify and link your ARIN account.
5
Save your backup codes.
Store the recovery codes ARIN gives you somewhere safe — you'll need them if you lose your phone.

Menu names on ARIN can change — the official ARIN 2FA documentation ↗ always has the exact, current path.

Frequently asked questions

Does ARIN work with authenticator apps like MS Authenticator App?: Yes. ARIN supports TOTP authenticator apps, so you can generate its two-factor codes in MS Authenticator App.
Is ARIN two-factor authentication free?: Yes. Enabling authenticator-app 2FA on ARIN is free — you only need the free MS Authenticator App.
What if I lose access to my ARIN 2FA codes?: Use the backup or recovery codes you saved during setup. If you didn't save them, contact ARIN support to regain access, then re-add the account to MS Authenticator App.

Generate your ARIN codes in MS Authenticator App

Free, offline, and encrypted. One tap for every 6-digit code.

Get the app

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