Bip39 Mnemonic Code Converter Tool. The seed phrase can be converted to your range which is made use of since the seed integer to some deterministic wallet that generates all the vital pairs used in the wallet. For words that have only three letters, there is not any 4th letter. https://bizdirectoryinfo.com/listings13027568/bip39-seed-https-linktr-ee-bip39-bip39-passphrase-generator-fundamentals-explained