Looks like hexadecimal. 16 bytes. So it's a 128-bit hash, 128-bit block encryption, or 16 byte stream encryption.
If it's a hash, you can't "decrypt" it due to collisions. You might be able to use a rainbow table.
But without, at a minimum, the encryption algorithm, it can't be decoded. Even with the algorithm, it would take too long to decode without the key used to generate it.