A wallet address is what you give someone so they can send you crypto, and one wrong character or network can cost you the transfer. This article shows what an address looks like and how to check it before you send or receive.
Published September 30, 2026 · 2 min read
A wallet address is a long string of letters and numbers. It is not a name or a phone number, and it is not meant to be memorised or typed by hand. Its exact format differs by network, so two addresses for the same coin can look quite different from each other. Because of the length, a single wrong character produces a different address, and the app or the network will not always warn you.
Many coins can move over more than one blockchain, and each network has its own address format. USDT is a common case: it can be sent over several networks, and each one uses its own kind of address. This means an address alone implies a specific network. When a service gives you a deposit address, it is issued for one network only, and the network is part of the instruction, not a detail.
Treat the address and the network as a pair and confirm both before you send. A short routine catches most mistakes:
If anything does not match, stop and re-check rather than send and hope.
| Check | What to do | What it prevents |
|---|---|---|
| Network | Confirm the sender and the recipient use the same network | Funds that do not arrive |
| Address | Compare the whole string with the source, or at least the start and end | Sending to a wrong or altered address |
| QR code | Scan instead of typing | A mistyped character |
| Minimum amount | Check the minimum shown for that network | A deposit that is not credited |
Yes, in one specific way: a scan avoids a mistyped character. That matters because a transfer is irreversible, and a typo can send funds to an address nobody controls. A QR code does not check the network for you, though, so you still need to confirm that the network matches. After scanning, glance at the address shown on the screen and compare it with the source.
If the address is on a different network than the one you sent through, the funds may not arrive. Recovering them is not guaranteed and may be possible only with the help of support, if at all. If the address itself is wrong, nobody can bring the transfer back, because blockchain transfers are irreversible. That is why the checks before sending matter more than any fix afterwards.
Nexus Pay is a crypto wallet with a Visa card, opened inside Telegram. It holds USDT, USDC, BTC and ETH. USDT and USDC can be deposited via TRC-20, ERC-20, BEP-20 and TON, while BTC and ETH use their own networks. Each deposit address belongs to one network, and a coin sent through a different network than the address was issued for will not arrive and cannot be reversed. Every network also has a minimum deposit shown in the app, and deposits below it are not credited.
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