<p>The 16 alphanumeric characters will be your 2FA recovery code. It isn't a seed for a wallet. You will need to log in to your account on Coinbase to retrieve the coins.</p>

CC BY-SA 4.0
2021-12-29T19:06:23.663Z
2021-12-29T19:06:23.663Z
meshcollider
<p>It could be an entropy, encoded in ASCII</p>
<p>or the BIP39 passphrase, to be combined with a mnemonic stored separately</p>

CC BY-SA 4.0
2022-03-07T14:53:03.720Z
2022-03-07T14:53:03.720Z
HansBKK
<p>I have found here at home a paper with &quot;coinbase seed&quot; label from the far paste. I totally forget it, and I would check the wallet, but it is not the 12 word Mnemonic, but 16 alphanumeric character. How could I convert back to the memnonic? :)</p>
<p>I checked here, but there is no converter:</p>
<p><a href="https://iancoleman.io/bip39/" rel="nofollow noreferrer">https://iancoleman.io/bip39/</a></p>

<coinbase.com><mnemonic-seed>
Convert alphanumeric to Mnemonic?
János
# Convert alphanumeric to Mnemonic?

(Asked by: username_0 on 2021-12-29)

I have found here at home a paper with "coinbase seed" label from the far paste. I totally forget it, and I would check the wallet, but it is not the 12 word Mnemonic, but 16 alphanumeric character. How could I convert back to the memnonic? :)

I checked here, but there is no converter:

<https://iancoleman.io/bip39/>

**Tags:** coinbase.com, mnemonic-seed


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## 2 answers

### Answer by username_1 on 2021-12-29. Score: 1

The 16 alphanumeric characters will be your 2FA recovery code. It isn't a seed for a wallet. You will need to log in to your account on Coinbase to retrieve the coins.


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### Answer by username_2 on 2022-03-07. Score: 0

It could be an entropy, encoded in ASCII

or the BIP39 passphrase, to be combined with a mnemonic stored separately


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