Yes, that is difference between Ethereum and BNB networks, and you can often identify the network by examining the wallet address. Simple that, you can find at Coinmarketcap, type your token in search (top) and you can find in contract address. Also BNB addresses can also be identified by checking their activity on the Binance Smart Chain Explorer (bscscan), like Ethereum addresses can be checked on Ethereum explorers such as Etherscan.