Networks & Addresses

A single reference for the network parameters and common addresses used throughout this documentation.

Networks

Network	`chainId` (hex)	EVM chainId (decimal)	RPC endpoint	Explorer
Mainnet	`0x2b6653dc`	`728126428`	`https://api.trongrid.io`	tronscan.org
Shasta testnet	`0x94a9059e`	`2494104990`	`https://api.shasta.trongrid.io`	shasta.tronscan.org
Nile testnet	`0xcd8690dc`	`3448148188`	`https://nile.trongrid.io`	nile.tronscan.org

The chainId hex value is what wallet_switchEthereumChain (TIP-3326) and the chainChanged event use. chainId values are case-sensitive.
The EVM (decimal) chainId is what EIP-712 typed-data signing uses in the domain.chainId field.

Testnet faucets

Shasta: request test TRX from the Shasta faucet.
Nile: request test TRX from the Nile faucet.

Address formats

TRON addresses have two interchangeable encodings:

Base58 — starts with T, e.g. TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t. This is the user-facing form.
Hex — starts with 41, e.g. 41.... This is the on-chain/raw form (the 41 prefix is TRON's address byte).

tronWeb.address.toHex() / tronWeb.address.fromHex() convert between them.

Units

1 TRX = 1,000,000 SUN. Amounts in tronWeb transaction builders (e.g. sendTrx) are expressed in SUN.

Common token contracts (Mainnet)

Token	Standard	Contract address
USDT	TRC-20	`TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t`

For any other token, look up its contract address on TronScan. Always verify a token's contract address before integrating — addresses differ per network.