Mobile Top-Up with USDT (Tether)
Send mobile credit to any number worldwide using USDT. TRC20 and ERC20 both accepted. USD-pegged so you pay exactly what you expect, with no exchange rate risk. 800+ operators, 170+ countries.
Enter the phone number
Select the country and enter the recipient's mobile number. CardsRelay auto-detects the operator.
Pay with USDT
Choose your top-up amount, select USDT at checkout, and send the exact amount shown. Rate locked for 30 minutes.
Airtime delivered
The network operator applies the credit directly. Most top-ups complete within seconds to a few minutes, depending on the operator.
170+ countries covered
Top up phones across Africa, Asia, Europe, the Americas, and the Middle East.
Why top up with USDT?
No price risk
USDT is pegged 1:1 to the US dollar. The amount you pay is close to the top-up value with no volatility between checkout and payment confirmation.
TRC20 confirms in seconds
USDT on Tron (TRC20) has near-instant confirmation and fees under $0.01. One of the fastest, cheapest payment options for international mobile top-ups.
800+ operators, 170+ countries
MTN Nigeria, Airtel India, Safaricom Kenya, Globe Philippines, EE UK and hundreds more. The same wide network, paid with USDT.
TRC20 and ERC20 both accepted
Whichever USDT network you hold, both are accepted. TRC20 for speed and low fees; ERC20 if you are transacting on Ethereum.
About mobile top-ups with USDT
USDT (Tether) is one of the most practical cryptocurrencies for mobile top-ups. Because it tracks the US dollar, the amount you pay is close to the face value of the top-up with no volatility risk between selecting an amount and confirming payment. CardsRelay accepts USDT on TRC20 (Tron, extremely low fees, confirms in seconds) and ERC20 (Ethereum). Both work across the same 800+ operator network covering 170+ countries. Whether you are sending airtime to Nigeria, recharging a mobile in Pakistan, topping up data in Ghana, or adding prepaid credit to a UK number, USDT is one of the most predictable and low-cost ways to pay. Most mobile top-ups complete within seconds to a few minutes of payment confirmation.
Frequently asked questions
Can I top up a mobile number with USDT?
Yes. CardsRelay accepts USDT on TRC20 and ERC20 for mobile top-ups on 800+ operators in 170+ countries. Enter the number, select the operator, pick an amount, and pay with USDT.
Is there a price risk when paying with USDT for a top-up?
No. USDT is pegged to the US dollar. The amount you pay is close to the face value of the top-up. There is no exchange rate risk between checkout and confirmation.
How fast does USDT TRC20 confirm?
Tron blocks confirm in approximately 3 seconds. USDT TRC20 payments typically complete within 30 seconds to 1 minute, making it one of the fastest ways to pay for a mobile top-up.
What countries can I send mobile credit to with USDT?
170+ countries are covered: Nigeria, India, Ghana, Pakistan, Kenya, Mexico, Bangladesh, Philippines, South Africa, UK, Netherlands, Australia and many more.
Can I send airtime to Nigeria with USDT?
Yes. MTN Nigeria, Airtel Nigeria, Glo, and 9mobile are all supported. USDT TRC20 is a particularly efficient choice: low fees, fast confirmation, USD value so you know exactly what you are sending.
What is the difference between USDT TRC20 and ERC20 for top-ups?
Both are USDT. TRC20 runs on Tron with very low fees (under $0.01) and confirms in seconds. ERC20 runs on Ethereum with higher gas fees and confirms in 1 to 3 minutes. The top-up amount and operator coverage are identical on both.
Ready to top up?
Enter a phone number, choose an amount, and pay with USDT. Most top-ups apply within minutes.
Top up a phone now