OKX Registration in Thailand: Why You Must Use Both Phone Number and Email
When registering on OKX in Thailand, the answer is extremely clear: you need both, one is never enough. This is not a multiple-choice question – registration requires binding both a phone number and an email at the same time.
Precondition: Understanding OKX's Registration Rules
When signing up for OKX in Thailand, you first need to know one thing: the registration process forces the simultaneous binding of a phone number and an email. No matter which one you enter first, the system will require you to add the other.
The design logic: the phone number is used for daily login and receiving SMS verification codes; the email is for system notifications and identity verification – together they create a double layer of security.
Step 1: Prepare Registration Materials
What to do: Before starting, make sure you have both items ready and functional.
How to do it:
| Required Material | Specific Requirement |
|---|---|
| Thai phone number | A +66 Thai number registered under your own name that can receive international SMS normally. |
| A commonly used email (Gmail, Outlook, QQ mail, etc.) that can receive messages normally. |
When is it completed: The phone number and email must both be able to receive verification messages.
Step 2: Complete Dual Binding on the Registration Page
What to do: Follow OKX registration flow to bind both phone number and email in sequence.
How to do it:
Open the OKX official website www.okx.com or the App and click [Sign up].
Select country/region of residence: Choose "Thailand".
Enter email: Fill in your email address, receive the verification code and enter it.
Add phone number: Choose the country code +66 (Thailand), enter your Thai phone number (remove any leading zero from the number).
Receive SMS verification code: Confirm that your phone can receive the 6-digit code sent by OKX, then enter it to complete the binding.
Set a password (at least 8 characters, containing uppercase and lowercase letters, numbers and special characters) and finish registration.
When is it completed: The page displays a successful registration, and both the phone number and email are bound.
Step 3: Understand the Roles of Each
What to do: After binding, clarify what the phone number and email are responsible for so you won't be confused in subsequent operations.
How to do it:
| Comparison Dimension | Thai Phone Number (+66) | |
|---|---|---|
| Core use | Receive SMS verification codes – sensitive actions like login, trading and withdrawals require phone verification codes | Receive system notifications, KYC results, important announcements, and password recovery |
| Frequency | High – needed for every sensitive operation | Medium – used for important notifications |
| Risk of deactivation | Higher – if the phone number is lost or deactivated, a complex replacement process is required | Lower – email is more stable and serves as a key credential for account recovery |
When is it completed: You understand that the phone number is for "daily operation verification" and the email is for "account safety backup".
Common Reasons for Failure
Only one is bound – the registration page forces dual binding; missing either one prevents completion.
Wrong country code for the phone number – choosing +86 or another code while using a Thai number will result in no SMS. Thai numbers must use +66.
Using a virtual number to register – some Thai users try virtual numbers to bypass identity verification, but these are usually blocked by OKX. Always use a real mobile number in your own name.
Email verification not received – check the spam/junk folder, or verify that the email address was entered correctly.
Risk Reminders
Once the phone number and email are bound, changing them involves multiple identity verification steps. After changing the phone number, withdrawals and C2C selling are blocked for 24 hours.
If the phone number is already in use (for example, previously registered to another OKX account), a "migrate account" process is required – only accounts that have not completed KYC can be migrated.
Do not register using a phone number or email under someone else's name, otherwise the subsequent KYC (identity verification) will be rejected due to mismatched information.
How to Confirm You Have Completed Everything Correctly
Log into your OKX account, go to [Profile] → [Security settings], and check:
Phone number shows a +66 Thai number
Email shows your bound email address
If both are present and displayed correctly, the basic registration setup is done. Next, you need to complete identity verification (KYC) to unlock core features like trading, deposits and withdrawals.
