If you've ever tried to send or receive ETH, the first thing anyone asks for is your ETH address. It looks like a random string of characters, but it's actually the key to everything that happens onIf you've ever tried to send or receive ETH, the first thing anyone asks for is your ETH address. It looks like a random string of characters, but it's actually the key to everything that happens on
ETH Address: What It Is, How It Looks, and How to Find Yours
If you've ever tried to send or receive ETH, the first thing anyone asks for is your ETH address.
It looks like a random string of characters, but it's actually the key to everything that happens on the Ethereum blockchain.
This article breaks down what an ETH address is, how it works, the difference between a wallet address and a contract address, and how to stay safe when using one.
Key Takeaways
- An ETH address is a 42-character public identifier on the Ethereum blockchain, always starting with
0x. - Every Ethereum wallet address is derived from your public key using the Keccak-256 hash function, as defined by the Ethereum protocol.
- There are two types of Ethereum addresses: wallet addresses (EOAs), owned by people, and contract addresses, which belong to deployed smart contracts.
- Your ETH address is safe to share publicly — your private key and seed phrase are what grant access to your funds and must never be shared.
- Always copy and paste your Ethereum wallet address rather than typing it manually, and double-check the first and last four characters before confirming any transaction.
- The Ethereum Name Service (ENS) lets you register a human-readable
.eth addressas an alias for your full wallet address.
What Is an ETH Address? Format, Length, and Example
An ETH address — also called an Ethereum wallet address — is your unique identifier on the Ethereum blockchain.
Think of it like a bank account number: you share it with others so they can send you ETH or any ERC-20 token, but knowing your address alone gives nobody access to your funds.
Every Ethereum address follows the same format: 42 characters long, always starting with
0x, followed by 40 hexadecimal characters (a mix of numbers 0–9 and letters A–F).Here's what a real Ethereum address example looks like:
0x71C7656EC7ab88b098defB751B7401B5f6d8976FThe address is mathematically derived from your public key — specifically, it's the last 20 bytes of the Keccak-256 hash of that public key, with
0x added in front, as documented by ethereum.org.The
0x prefix simply signals that what follows is a hexadecimal value, a standard convention in computer science.ETH Wallet Address vs. Ethereum Contract Address: Key Differences
Both types look identical on the surface — 42 characters, starting with
0x — but they serve completely different purposes.1. Ethereum Wallet Address (EOA)
An Ethereum wallet address, also known as an Externally Owned Address (EOA), belongs to a real person or organization.
It's controlled by a private key, and it's what you use every day to send and receive ETH or ERC-20 tokens.
2. Ethereum Contract Address
An Ethereum contract address is the on-chain home of a deployed smart contract — not a person.
For example, USDT and USDC each have their own Ethereum token address on the Ethereum mainnet, which is where the token's logic lives.
3. Why This Distinction Matters
Sending ETH to a token contract address by mistake may result in the funds becoming inaccessible — always verify the address type before sending.
Always verify any ETH token contract address against official project sources — never rely on addresses copied from social media or unofficial forums.
How to Find Your Ethereum Wallet Address
Finding your Ethereum wallet address takes less than a minute in any standard wallet. Here's how:
- Open your crypto wallet app or browser extension and navigate to the Receive section.
- Select Ethereum (ETH) from the list of supported networks — this ensures you're on the correct network.
- Your eth wallet address will appear on screen along with a QR code; tap the copy icon to copy it exactly.
- Double-check the first and last four characters after pasting — this is the fastest way to check your ETH address for accuracy.
- Never type the address manually; always copy and paste to eliminate the risk of errors.
ETH Address Safety: How to Check and Protect Your Ethereum Address
Your public ETH address is safe to share — that's the whole point of it.
What you must never share is your private key or seed phrase, because that's what grants actual access to your funds.
When sending crypto, always verify the Ethereum wallet address of the recipient directly — not from your transaction history, which can be manipulated by a tactic called address poisoning, where scammers send small amounts from a nearly identical-looking address hoping you'll copy theirs by mistake.
One useful safeguard is the checksum Ethereum address format (EIP-55), where specific letters are capitalized based on the address hash — many wallets use this automatically to help catch typos before a transaction goes through.
For anyone who prefers something human-readable, the Ethereum Name Service (ENS) lets you register a
.eth address like yourname.eth that maps directly to your long hex address, reducing copy-paste errors significantly.FAQ
What is an ETH address?
An ETH address is a 42-character public identifier on the Ethereum blockchain used to send and receive ETH and ERC-20 tokens.
What is an Ethereum wallet address?
It's the same as an ETH address — a public string starting with
0x that represents your account on the Ethereum network.What is an Ethereum contract address?
It's the on-chain address of a deployed smart contract, such as the USDT or USDC token contracts on Ethereum mainnet.
How do I find my Ethereum wallet address?
Open your wallet, go to Receive, select ETH, and your address will be displayed — copy it directly rather than typing it.
Is an Ethereum address case sensitive?
No — Ethereum addresses are not case sensitive, though wallets may display a checksummed (mixed-case) version for added error detection.
Can I send USDT to an ETH address?
Yes, as long as you select the Ethereum (ERC-20) network when sending — using the wrong network may result in loss of funds that is difficult or impossible to recover.
What is a .eth address?
A
.eth address is a human-readable name registered through the Ethereum Name Service (ENS) that maps to a standard Ethereum wallet address.Conclusion
Your ETH address is your entry point into the Ethereum ecosystem — whether you're holding ETH, using DeFi protocols, or receiving ERC-20 tokens.
Keeping your wallet address accessible and your private key absolutely private is the single most important habit to build.
If you're ready to start trading ETH, you can buy Ethereum on MEXC and have your assets sent directly to your Ethereum wallet address.
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