<p>I know that there are 3 major types of address types:</p>
<ul>
<li>Legacy (P2PKH) start with: <strong>1</strong></li>
<li>Compatible (P2SH) start with <strong>3</strong></li>
<li>Native Segwit (Bech32) start with <strong>bc1</strong></li>
</ul>
<p>more inforamtion here:
<a href="https://bitcoin.stackexchange.com/questions/96051/pros-and-cons-of-each-address-types">Pros and Cons of each address types</a></p>
<p>However, recently I found that there are another stange prefixes like:</p>
<ul>
<li>m-1ffe66d27929a1a197e1a4919b002230</li>
<li>d-fdf6c0e1f6e259ce32704f7091ca6dd3</li>
</ul>
<p><a href="https://i.sstatic.net/InLoy.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/InLoy.png" alt="enter image description here" /></a></p>
<p>Source: <a href="https://gz.blockchair.com/bitcoin/addresses/" rel="nofollow noreferrer">https://gz.blockchair.com/bitcoin/addresses/</a></p>
<p>A new type of address prefixes released?</p>

CC BY-SA 4.0
2021-01-06T21:53:29.447Z
Where do you see such addresses?
Pieter Wuille
CC BY-SA 4.0
2021-01-06T22:05:49.567Z
added the source
pr0logas
<bitcoin-core><address>
Bitcoin address types and specific prefix
pr0logas
# Bitcoin address types and specific prefix

(Asked by: username_0 on 2021-01-06)

I know that there are 3 major types of address types:

* Legacy (P2PKH) start with: **1**
* Compatible (P2SH) start with **3**
* Native Segwit (Bech32) start with **bc1**

more inforamtion here:
[Pros and Cons of each address types](https://bitcoin.stackexchange.com/questions/96051/pros-and-cons-of-each-address-types)

However, recently I found that there are another stange prefixes like:

* m-1ffe66d27929a1a197e1a4919b002230
* d-fdf6c0e1f6e259ce32704f7091ca6dd3

[![enter image description here](https://i.sstatic.net/InLoy.png)](https://i.sstatic.net/InLoy.png)

Source: <https://gz.blockchair.com/bitcoin/addresses/>

A new type of address prefixes released?

**Tags:** bitcoin-core, address

> **Comments:**
> **username_1**: Where do you see such addresses?  
> **username_0**: added the source  

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## 0 answers

