How to add money to Wi-Fi using 900: Complete instructions

The question of how to top up Wi-Fi via 900 most often arises among subscribers using MTS home internet services. The digital code *900# is a universal service menu that allows you to manage basic communication services without internet access. However, many users mistakenly believe this command is intended exclusively for mobile phones, forgetting that services can be managed via a SIM card inserted into a router or via a linked phone number.

It's important to clarify right away that you can't directly "deposit money" into your home router account via a USSD command from your phone if the router number doesn't match your phone number. The system MTS It works on the principle of separating personal accounts, but combines them into a single "MTS Family" or allows for transfers of funds. If your router uses the technology 4G/LTE and a SIM card is installed in it, then top-up is done like with a regular mobile number.

If we're talking about a fixed home internet connection delivered to your apartment via cable or fiber optics, the situation is different. In this case, you have a personal account, which can be linked to your mobile number. Managing this linked number is how you manage your balance. Key point: to pay for home internet via *900#, your mobile number must be pre-linked to an internet contract in your personal account.

In today's digital environment, telecom operators are striving to migrate all users to mobile apps, but USSD requests remain the most reliable solution when you don't have a smartphone with internet access or the app isn't working properly. Understanding the logic behind service codes will help you quickly restore network access at a critical moment.

How USSD requests and menu 900 work

Technology USSD (Unstructured Supplementary Service Data) is a protocol for interaction between a mobile phone and an operator's server. Unlike SMS, messages are not stored in the device's memory, and the dialogue occurs in real time. Code *900# Launches an interactive voice or text menu that is navigated by selecting numbers. This allows financial transactions, such as paying for services, to be performed even on push-button phones or devices without support for GPRS/3G.

When you dial a command, a signal is transmitted to the operator's gateway, which forwards the request to the billing system. There, your balance is checked, the subscriber is identified, and the requested operation is performed. For home internet, this means the system searches for the contract linked to your phone number and credits the funds to the corresponding account.

⚠️ Please note: USSD requests only work within the cellular coverage area. If you have lost signal or your SIM card is blocked, perform the operation via *900# It won't work. In such cases, you need to use alternative communication channels or find a location with a strong signal from another operator (if your SIM card supports roaming, which is usually unavailable for financial transactions).

It's worth noting that the menu may change depending on the region and the operator's current promotions. The search structure remains the same, but menu items may be renamed. So, if you previously used the service and remember the sequence of numbers, but it's no longer working, the interface may have been updated.

📊 How do you prefer to pay for your home internet?
Through the bank's app
Via USSD commands
In your personal account on the website
Automatic replenishment

Instructions: Paying for MTS home internet via 900

If your home internet and mobile phone service are served by the same provider and your numbers are linked, the payment process is extremely simplified. You don't need to search for payment details or enter long numbers. All you need is access to a telephone keypad.

First, make sure the SIM card you're using to make the call is active and has funds (if you plan to pay from your account balance) or is connected to the network (for authorization). Enter the universal code on your phone's keypad. *900# and press the call button. A menu with a list of available services will appear on the screen.

☑️ USSD payment algorithm

Completed: 0 / 6

In the menu that opens, select the option responsible for financial transactions. Typically, this is "Payment for Services" or "Finance." Next, the system will prompt you to select the payment recipient. If your phone number is already linked to your home internet service, the system will automatically pull the information and offer to pay for that service. If it's not linked, you'll need to enter the account number manually.

After selecting the service type (Internet/Landline/TV), the system will prompt you for the amount. You can enter the exact amount needed to restore access or select a standard plan. Once confirmed, the transaction will be completed instantly, and the funds will be debited from your main SIM card account or your bank card, if linked to the service. MTS Money.

Topping up your 4G/LTE router (MTS Wi-Fi)

The situation with mobile routers in which a standard SIM card is inserted 4G/LTE, is fundamentally different from a landline internet connection. In this case, the router is simply an intermediary device transmitting the cellular network signal. Essentially, you're paying for the mobile phone service.

To top up your router, you'll need to know the phone number of the SIM card installed inside the device. This number is often found on a sticker under the router's battery or on the SIM card itself. If you know the number, you can top it up from any other phone using the same code. *900#.

The algorithm of actions in this case will be as follows: dial *900#, select "Pay for Services" or "Transfers and Payments." Then select "Pay to Another Subscriber" or "Mobile Communications." Enter the router's SIM card number and the top-up amount. The funds will be credited to the SIM card balance, and the router will automatically resume data distribution. Wi-Fi.

Device type What do we pay for? Required data Team
Stationary router (cable) Personal account of the agreement Phone number (linked) or PM *900# -> Payment for services
Mobile 4G/LTE router SIM card balance SIM card phone number *900# -> Payment to another
USB modem SIM card balance SIM card phone number *900# -> Payment to another
Keenetic/TP-Link router (non-MTS provider) Provider's bill Provider details *900# -> Internet (search for provider)

Make sure you have enough credit in your account to activate your data plan if you have a metered data plan. Some carriers completely block access when your balance is zero, preventing you from even accessing your device's personal account.

What should I do if my SIM card is blocked in my router?

If the SIM card has been in the router for a long time and the balance has fallen significantly into negative territory, the operator may have blocked the number. In this case, simply topping up the SIM card may not activate the service immediately. You will need to call customer support or use the unblocking command, if available, in the *900# menu. Sometimes you need to make an outgoing call from the SIM card, which requires temporarily inserting it into the phone.

Paying for Internet from other providers through MTS

Code *900# allows you to pay for services not only of your own operator, but also of third-party providers, such as Rostelecom, Dom.ru, Beeline or Third Transport RingThis is convenient when you need to urgently pay for internet but don't have a bank card or app at hand.

To do this, select "Pay for Services" in the USSD main menu, then "Internet" or "Providers." The system will offer a list of popular providers. If your provider isn't listed, select "Find Provider" and enter the name manually (for example, "Rostelecom"). Next, you'll need to enter the subscriber account number specified in your contract.

When paying for services from third-party organizations, a commission may be charged. MTS Charges a commission for processing payments if the amount is below a certain level or if you are not a loyalty program member. The commission amount is always displayed on the screen before the final transaction confirmation.

⚠️ Please note: When paying through third-party providers, funds may not be credited instantly, but may take several minutes or even hours, depending on the payment gateway's operating procedures. Do not attempt to repeat the payment multiple times if the funds have been debited but your internet connection is not available—this may result in a double payment.

Alternative methods of replenishing and managing your balance

While USSD requests are a convenient tool, they have limited functionality. For full control of your home network and router, it's recommended to use your operator's digital channels. They provide more detailed information about traffic consumption, activated options, and payment history.

The most functional tool is Personal account On the official website or in the mobile app. There, you can not only top up your account, but also change your plan, enable antivirus software or parental control, and set up call forwarding. To log in, use the same credentials you use to log into the operator's system.

  • 📱 Mobile application: Allows you to pay bills in one click, set up auto-payments, and monitor expenses for all family members in real time.
  • 💻 Website: A full-featured personal account with advanced tariff settings and call/session details.
  • 🤖 Chatbots: Operators are implementing bots in instant messengers (Telegram, Viber, WhatsApp), which also allow you to quickly send a payment command by typing the simple phrase "Top up your account."

It is also worth considering the possibility of customization AutopaymentThis feature eliminates the need for manual deposits. You set a minimum balance threshold (e.g., 50 rubles) and a top-up amount (e.g., 500 rubles). When the balance drops below the threshold, the system automatically debits the linked card.

Solving payment problems

Users often encounter situations where payments don't go through or funds aren't credited. One common issue is a format error in the number or account number. Carefully check the entered data, especially if you're entering it manually through *900#.

Another issue is insufficient balance on your primary SIM card to pay for services. Remember that to make a payment, your phone account must have enough money to cover the cost of the service plus any possible fees. If you don't have enough money, use your bank card through the menu. *900#, if this option is supported, or top up the SIM card itself first.

If there are technical issues on the operator's end, the command may not be executed or a system error may occur. If you receive an error message, don't panic. Check your balance after 10-15 minutes. If the money has been debited but the service hasn't been activated, save the SMS receipt and contact support.

Security of financial transactions

Using USSD requests, you're connected to your operator's secure communication channel. However, scammers may use social engineering to trick you into revealing verification codes. Never share SMS codes with strangers, even if the caller claims to be from a security service.

Please check the amount to be debited before confirming. In the menu *900# The amount to be debited is always clearly stated. If the amount differs from the expected amount, cancel the transaction. Also, regularly check the transaction history in your personal account to spot any unauthorized charges promptly.

Is it possible to pay for MTS home Internet from a number of another operator (Beeline, Megafon)?

Directly through the code *900# You can't pay for MTS services from another operator's number, as this is a specific operator's service menu. However, you can use your operator's menu to transfer money to your MTS account (the "Pay for another operator's services" or "Mobile transfer" option), and then pay for internet from your MTS number. Or you can use your banking app.

What should I do if the *900# code doesn't work or gives an error?

Make sure your SIM card is active and connected to the network. Check if the USSD service is blocked (this is rare, but can happen when changing your plan). Try restarting your phone. If the problem persists, try alternative methods: the My MTS app or the operator's website.

Is there a commission for payment via *900#?

When paying for MTS services (your home internet or mobile phone), there is generally no commission. When paying for third-party providers or transferring funds to cards of other banks, the commission can range from 0% to 3%, depending on the plan terms and the type of transaction.

How to link home Internet to a mobile number?

To do this, log in to your personal account on the operator's website and find the "Add Device" or "Merge Accounts" section (MTS Family). You'll need a home internet contract or personal account. After entering your details and confirming them via SMS, all services will be combined into one bill.