Here's the short version: to change the phone number on your Binance account, you first verify your identity with the old number, your email, and 2FA to unbind it, then bind the new number. The whole process takes about 10 minutes, and you do not need to re-link Google Authenticator during this. If your old number has already been disconnected and can no longer receive texts, you'll need to go through the "phone number cannot be verified" appeal process instead, which typically takes 1-3 business days. Start on the Binance Official Site; app users can follow the same path in the Official Binance App; iPhone users should check the iOS Install Guide first to get the genuine app installed.
A lot of users switch phone numbers and only later discover that their Binance account is still tied to the old one, so every login or withdrawal fails to deliver the SMS code. This article walks through both scenarios — "the old number still works" and "the old number is dead" — and clears up exactly how Google Authenticator and SMS verification relate to each other.
Your Binance account has three separate verification channels, and it's worth knowing which ones a number change actually touches:
SMS code: sent to your bound phone number, used for login, withdrawals, and security setting changes. Changing your phone number directly affects this one.
Google Authenticator 2FA: the 6-digit rotating code generated inside the app on your phone, and it has nothing to do with your phone number. Changing your number does not affect 2FA.
Email verification code: sent to your registered email address, also unrelated to your phone number. Changing your number does not affect email verification.
Once you understand how these three fit together, the core task of changing your number becomes simple: unbind the old number, then bind the new one. Google Authenticator and your email stay exactly as they are.
If you still have your old number in hand and it can still receive texts, this is the simplest case.
Open the Binance website or app and log in to your account. Tap your avatar → "Account" → "Security" on the left side.
Find the row labeled "Phone Verification" or "Phone Number" — the currently bound number will be shown there, with the middle digits masked by asterisks.
Tap the "Change" button. Binance will ask you to enter:
Once all three codes check out, you move to the next step.
Fill in the new number, including the country code, and tap "Get Code." A 6-digit verification code will be sent to the new number — enter it to continue.
After the new number is verified, Binance will once again ask for your 2FA and email codes to confirm the change. Once all three checks pass, the new binding takes effect.
Once the change succeeds, log out of Binance and log back in. After entering your email and password, Binance will send an SMS code to your new number. If the new number receives it normally and verification passes, the binding was successful.
If you've already switched carriers or cancelled the old number and it can no longer receive texts, step one of the standard process is a dead end. In this case, you'll need to go through the "phone number cannot be verified" appeal process.
Open Binance's live customer support, choose "Account Issues" → "Unable to receive SMS verification."
Support will ask you to submit:
Once everything is submitted, you wait for review, which usually takes 1-3 business days.
After approval, support will unlock the phone number change option for you. Go to "Security" → "Change Phone Number" and simply add the new number — no old-number code is required this time.
Any account that changed its phone number through the appeal process should strongly consider doing all of the following at the same time:
A lot of people mistakenly assume that changing your phone number means you also need to re-link Authenticator. That's wrong.
Authenticator is tied to your Binance account ID (or your registered email), not your phone number. Change your number, and the Binance entry inside Authenticator keeps generating valid codes exactly as before.
The only situation where you actually need to migrate Authenticator is:
In these cases you'll need to go through the Authenticator migration process — see our guide "How to transfer Google Authenticator after changing your Binance phone" for the details.
| Step | Old number still works | Old number disconnected |
|---|---|---|
| Entry point | Security → Change Phone Number | Live chat appeal |
| Identity verification | Old number SMS + email + 2FA | ID + face + video |
| Processing time | 5 minutes | 1-3 business days |
| Difficulty | Simple | Moderate |
| Cost | Free | Free |
No matter which process you went through, it's worth running a full self-check afterward:
Running through these eight checks once a month blocks the vast majority of account security risks.
If you switched to a local phone number while abroad and need to rebind Binance to it:
Option one: keep your home number
Keep your home-country number receiving Binance SMS, and use roaming or mobile data abroad to access it. A monthly roaming fee of a few dollars in exchange for account security is worth it.
Option two: bind a backup number
Some regional Binance versions support binding a secondary backup phone number. Add your local number as the backup for redundancy.
Option three: fully switch to the local number
If you've decided to live abroad long-term and give up your home-country number, follow the standard process from "Scenario One." Since the change happens alongside an IP change, it may trigger risk control, so it's worth notifying support in advance.
Note: Binance switches you to a different regional version based on your phone number's country code (a China-based number puts you on the international version, while a US number puts you on Binance.US), and some features differ between regions. Before switching, make sure you're comfortable with that change.
If your main Binance account has sub-accounts under it, each sub-account has its own independently bound phone number. To change numbers:
API sub-accounts and institutional accounts manage phone numbers independently — changing one does not carry over to another.
Q: Does changing my phone number affect the assets in my account? A: No. Your phone number is just one of several verification methods and has nothing to do with your BTC or USDT balances. Your assets stay safe throughout the entire process.
Q: Can I withdraw within 24 hours of changing my number? A: You can, but in some cases Binance triggers a "security cool-down period" that limits large withdrawals for 24-48 hours. This exists to prevent immediate laundering if an account has been compromised. Just wait it out.
Q: My 2FA code stopped working after changing my number — what do I do? A: 2FA has nothing to do with your phone number. If both fail at the same time, that's a separate, unrelated issue — most likely your phone's clock is out of sync, or there's a problem with the Authenticator app itself. Check our "Binance 2FA code keeps failing" troubleshooting guide first.
Q: Will my new phone number receive Binance texts immediately? A: Yes. It takes effect the moment the binding succeeds, with no cool-down period. However, some carriers have "international SMS blocking" enabled by default, so you may need to contact your carrier's support to enable international SMS.
Q: I got a "phone number already in use" error — what does that mean? A: It means that number was previously bound to a different Binance account. Contact support and file a "phone number ownership dispute," submitting ID proof that you currently own that number.
Q: Can I use a virtual number (Google Voice, Twilio) to bind Binance? A: Technically yes, but Binance's risk controls sometimes detect virtual numbers and require you to switch to a real carrier number. It's best to use a legitimate carrier-issued phone number.
Q: I got a "suspicious location" warning after changing my number? A: If you switched cities or countries around the same time you changed numbers, Binance may flag this. Just complete the extra verification it asks for (email + 2FA) — it won't affect your account otherwise.
Q: Can I skip binding a phone number and rely on 2FA and email only? A: Some regional versions support this, but not binding a phone number will restrict certain features (like P2P trading and fiat deposits). It's strongly recommended to keep a phone number bound.
If you run into any snag during the process, go straight to Binance's live support for help — never trust any third-party "agent" service claiming to handle it for you.