Battle.net Phone Number: How to Link It and When a Virtual Number Can Help

A phone number is not required for every Battle.net account, but some Blizzard and Activision games, security features and account-recovery tools require a verified mobile number. If you prefer not to use your personal phone, a virtual number may help you receive the SMS code—provided Blizzard accepts the country, carrier and number type. Revosim currently lists Blizzard as a dedicated SMS-activation service.

Players most commonly encounter phone verification when trying to access Overwatch, Call of Duty or Battle.net Phone Notifications. This guide explains how to link a number, which phone numbers may be rejected and what to do when the code never arrives.

Battle.net phone verification at a glance

Blizzard maintains separate support articles for required phone verification, adding or changing a number, incorrect country codes, numbers already in use, missing SMS messages and errors encountered while linking a phone.

Why does Battle.net ask for a phone number?

Battle.net does not necessarily request a phone number when the account is first created. The requirement may appear later when you launch a particular game or enable an account feature.

A linked mobile number may be used to:

• meet the requirements of certain games;
• receive Battle.net Phone Notifications;
• unlock a restricted account;
• remove a lost authenticator;
• recover the account name;
• approve a password reset;
• receive alerts about suspicious activity or security changes.

Blizzard describes SMS Protect—now commonly referred to as Battle.net Phone Notifications—as an account-management and recovery tool that can help users unlock accounts, remove an unavailable authenticator, recover an account name and reset a password.

This is why the phone number should not always be treated as a disposable detail needed for only a few minutes.

Which games may require a phone number?

The two most common examples are Overwatch and Call of Duty.

Overwatch

Blizzard still maintains a dedicated support article explaining when SMS is required to play Overwatch. The exact requirement may depend on the account’s history and current eligibility rules.

The policy has changed over time. Blizzard removed the phone requirement for many existing Overwatch players in 2022 and later expanded SMS Protect support to more prepaid phones. As a result, it would be inaccurate to say that every Overwatch player always needs a number or that every prepaid number is rejected.

The practical rule is simple:

If Battle.net displays a phone-verification requirement for your account, you must add an accepted number before you can continue.

Call of Duty

Call of Duty may use the phone number linked to your Battle.net account for verification challenges. If messages are being sent to an old number, Blizzard instructs users to update the number in their Battle.net account first.

Blizzard also states that a Battle.net account can contain only one relevant Call of Duty title licence under the rule described in its support article. Creating another Battle.net account for a new licence may require a different phone number.

How to link a phone number to Battle.net

The interface may vary slightly, but the usual process is:

1. Sign in to your Battle.net account.
2. Open Account Settings.
3. Go to your account details or contact information.
4. Check the country or region shown in the account.
5. Select the option to add a phone number.
6. Enter the number in the requested format.
7. Request the verification message.
8. Enter the code received by SMS.

The account country matters. Blizzard has specific support articles for cases where the wrong country code appears or where a user has updated their country but still cannot add a phone number.

Do not choose a country only because its virtual numbers are cheaper. A mismatch between the account region and the phone country can prevent the number from being accepted.

Can you use a virtual number for Battle.net?

Sometimes.

A virtual number may work when:

• it can receive SMS from Blizzard;
• the selected carrier range is accepted;
• its country matches the account’s legitimate region;
• it has not already been connected to another Battle.net account;
• it meets the requirements of the relevant game.

However, receiving ordinary SMS does not guarantee compatibility with Battle.net.

Blizzard may consider:

• the type of number;
• the mobile carrier;
• the country code;
• previous use of the number;
• whether it is already associated with another account;
• whether it has previously been used for a free game;
• the requirements of Overwatch, Call of Duty or another product.

Blizzard’s current support index includes separate cases for an ineligible phone number, a number already used on another account, the wrong country code and a phone that cannot be used to complete an operation.

Battle.net Phone Notifications do not support VoIP numbers according to Blizzard’s official documentation. Prepaid-number support is less absolute: Blizzard expanded prepaid access for Overwatch, but an individual number may still be rejected depending on the carrier or region.

How to receive a Battle.net SMS through Revosim

Revosim lists Blizzard as a separate service in its SMS-activation catalogue. This means you should select Blizzard directly instead of choosing an unrelated or generic service.

Step 1. Check your Battle.net account region

Open the account details and confirm the country currently associated with the account.

The virtual number should fit your legitimate account setup. A foreign phone number does not automatically change the country of the Battle.net account.

Step 2. Open SMS Activation in Revosim

Sign in and open the section for receiving one-time verification messages.

Step 3. Select Blizzard

Choose Blizzard from the catalogue.

Service-specific SMS activations are intended to receive messages from the selected sender. Blizzard is currently visible as a dedicated option.

Step 4. Choose an available country

Consider:

• the country attached to your Battle.net account;
• the countries currently available for Blizzard activation;
• the requirements of the game you are trying to access.

The lowest-priced country is not necessarily the most suitable one.

Step 5. Copy the number

Enter it in Battle.net exactly as required.

Avoid:

• adding the country code twice;
• omitting digits;
• adding unnecessary symbols or spaces;
• selecting a country code that differs from the one shown by Battle.net.

Step 6. Request the SMS

Return to the Revosim dashboard after Battle.net sends the message.

Step 7. Enter the latest code

Use the most recent SMS code. If several codes were requested, an earlier one may no longer be valid.

If Battle.net rejects the number immediately, the issue is probably not SMS delivery. Blizzard may have rejected the number type, carrier or previous usage history.

One-time activation, rental or personal SIM?

The best option depends on how important the Battle.net account is.

One-time Blizzard activation

One-time activation is most suitable when:

• you need a single code;
• the account is temporary or used for testing;
• you understand that the number will not remain available;
• Blizzard accepts the selected number.

Once the activation ends, you should not expect to receive another message on the same number.

Rented virtual number

Rental may be more suitable when:

• the same number must remain available;
• you expect repeated messages;
• you want to receive security notifications;
• the account will be used for several months.

Revosim offers virtual-number rentals for fixed periods, but its own catalogue notes that numbers do not necessarily work with every third-party service. Compatibility with Blizzard should therefore be checked before relying on a rented number.

Personal mobile number

For a primary Battle.net account with purchased games, characters, achievements and payment history, a personal number that remains under your control is the safest option.

Why Battle.net does not accept your phone number

A rejected number and a missing SMS are two different problems.

If the number is rejected before a message is sent, possible reasons include:

Blizzard’s support centre treats these as separate issues and maintains dedicated guidance for errors when adding a phone, an incorrect country code and a number already associated with another account.

Repeatedly requesting another code will not help if Blizzard has already rejected the number itself.

The phone number is already in use

Battle.net restricts the reuse of phone numbers.

If you see a message saying the number is already connected to another account:

1. Check your older Battle.net accounts.
2. Remove or update the phone on the previous account where possible.
3. Consider whether the number may have had another owner.
4. Contact Blizzard Support if you have never used the number before.

A recycled mobile or virtual number may have been linked by a previous user. Blizzard has a specific support case for numbers reported as already being used on another account.

Blizzard also states that a phone number can only be linked to one free game under the relevant restriction.

Why the Blizzard SMS code does not arrive

If Battle.net accepted the number but no message appears, check the delivery process.

Blizzard maintains separate current support entries for users who do not receive phone messages and for invalid SMS verification codes.

If the SMS never appears, do not request dozens of new codes in quick succession. That can trigger additional rate limits or security checks.

Does the phone country need to match the Battle.net country?

In practice, the account country and the phone country should be consistent.

Blizzard specifically documents:

• cases where the wrong country code appears;
• users who corrected the account country but still cannot add the phone;
• connection errors while enabling phone notifications.

A virtual number should not be used to pretend that the user lives in another country. If you have genuinely moved, update the account country through Blizzard’s official process before adding the local number.

Can you use a Russian phone number?

Blizzard disabled SMS features for regional players in Russia in 2022 as part of restrictions on its services. A Blizzard support representative stated on the official forum that this affected access to certain Battle.net game features.

Players with Russian-region accounts have continued to report difficulties adding +7 phone numbers. However, a foreign virtual number does not automatically change the account country or remove regional restrictions.

Users who have genuinely relocated should update their country of residence through the official Battle.net account process rather than simply attaching a foreign number.

Can you use a Kazakhstan phone number?

The situation with Kazakhstan is less clear.

Battle.net users reported throughout 2025 and 2026 that numbers from operators including Beeline, Kcell, Tele2 and Altel were rejected or accepted without the SMS being delivered. Some users believe Kazakhstan’s shared +7 country-code system is being incorrectly associated with Russian restrictions, but Blizzard has not published a universal statement confirming that all Kazakhstan numbers are unsupported.

Therefore, it would be inaccurate to promise that every Kazakhstan number will work—or that none of them will.

When a Kazakhstan number fails, check:

• the account country;
• the +7 format;
• the mobile operator;
• whether international service SMS is enabled;
• whether the number is already used elsewhere;
• whether Battle.net accepts the number before sending the message.

These are user-reported regional problems rather than a confirmed blanket ban.

What happens if you lose access to the linked number?

This is the main disadvantage of using a one-time activation.

Battle.net Phone Notifications can be used for password resets, account unlocks, account-name recovery and removal of a lost authenticator. If the temporary number is no longer available, these self-service options may become more difficult to use.

You may then need to rely on:

• access to the linked email;
• the Battle.net Authenticator;
• recovery information;
• proof of account ownership;
• Blizzard Customer Support.

For a valuable long-term account, it is safer to use a number that will remain under your control.

Should you use a free public SMS website?

No—not for an important gaming account.

Public SMS inboxes create several problems:

• other visitors may see the verification code;
• the number may have been used by many people;
• it may already be linked to Battle.net;
• you cannot guarantee access later;
• the number may be recycled.

A private one-time activation prevents the code from being displayed publicly, but it still does not provide long-term control over the number.

Which option should you choose?

Choose a one-time Blizzard SMS activation when:

• you need only one code;
• the account is temporary or low-value;
• you accept that the number may not be available later.

Consider a rented number when:

• you need to keep the same number for a set period;
• you expect repeated SMS messages;
• you have confirmed compatibility with Blizzard.

Use a personal mobile number when:

• this is your primary account;
• you own games or valuable in-game content;
• you may need account recovery;
• you want the most reliable long-term access.

Key takeaway

A phone number is not required for every Battle.net account, but it may become necessary for specific games, SMS Protect and account-recovery features. Blizzard maintains dedicated requirements and troubleshooting processes for phone verification, incorrect country codes, reused numbers and missing messages.

Revosim currently offers a dedicated Blizzard SMS activation, allowing users to select an available country, obtain a virtual number and receive a one-time code online.

However, Battle.net may reject a number because of its carrier, type, country or previous use. A disposable number can be convenient for one SMS, but a phone you control long term is safer for a primary Battle.net account with purchased games and valuable progress.

Frequently asked questions

How do I link a phone number to Battle.net?

Sign in, open the account details, select the option to add a phone, enter the number and confirm it using the SMS code.

Can I use a virtual number for Battle.net?

Sometimes. It must be accepted by Blizzard and able to receive the verification message.

Does Revosim support Blizzard?

Yes. Blizzard is listed as a dedicated service in Revosim’s SMS-activation catalogue.

Why does Battle.net reject my number?

The carrier, number type, account country or previous use of the phone may make it ineligible.

Why am I not receiving the Battle.net SMS?

Check the number format, country code, carrier support and whether too many messages were requested. Blizzard maintains a separate troubleshooting process for missing phone messages.

Can I use a VoIP number?

Blizzard’s phone-notification documentation states that VoIP numbers are not supported.

Can I use a prepaid phone?

Some prepaid phones can work. Blizzard expanded prepaid access for Overwatch, but compatibility still depends on the carrier, region and number.

Why does Battle.net show the wrong country code?

The code is connected to the country listed in the account. Review the account country and use Blizzard’s country-update process if you have genuinely moved.

What should I do if the phone is already in use?

Check older Battle.net accounts. If you have never used the number, it may have belonged to someone else, and Blizzard Support may need to investigate.

Can I use one phone number for two Battle.net accounts?

Restrictions apply, and one number can only be linked to one free game under Blizzard’s documented rule.

Is a phone number required for Overwatch?

It depends on the account and current rules. Follow the requirement displayed by Battle.net for your account.

Is a phone number required for Call of Duty?

It may be required for verification challenges. Call of Duty uses the valid phone number attached to the Battle.net account.

Can I use a Russian number?

Blizzard disabled SMS features for Russian regional players in 2022, and users continue to report limitations. A foreign number does not change the account region.

Can I use a Kazakhstan number?

Some users report ongoing problems with Kazakhstan numbers, but Blizzard has not published a blanket rule covering every operator and account.

What is better: one-time activation or rental?

One-time activation is simpler for one code. Rental is more suitable when you need continued access, provided the number is compatible with Blizzard.

Is a free public SMS number safe?

No. The code may be visible to other people, and the number may already be linked to another account.

Can a foreign phone number change my Battle.net region?

No. Update the country through the official account process if you have genuinely moved.