<p>I think you are talking about Bitcoin addresses, those are considered disposable, consider this; a simple computer constantly generating Bitcoin addresses will generate all possible combinations in 69 <a href="http://en.wiktionary.org/wiki/tredecillion" rel="nofollow">tredecillion</a> years.</p>

CC BY-SA 3.0
2013-04-03T22:23:27.673Z
2013-04-04T04:32:50.000Z
2013-04-04T04:32:50.000Z
user3418
<p>Is there a theoretical upper bound on the number of possible wallets, similar to the upper bound of 21 million Bitcoins that can be generated?</p>

CC BY-SA 3.0
2013-04-03T23:13:35.803Z
Yes. ECDSA has a limited keyspace, just like we can't keep generating different RIPEMD160 hashes. But will this **ever** be a problem? No! :)
Nicolai
<wallet><reward-schedule>
Is there a limited number of Bitcoin wallets?
Randomblue
# Is there a limited number of Bitcoin wallets?

(Asked by: username_0 on 2013-04-03)

Is there a theoretical upper bound on the number of possible wallets, similar to the upper bound of 21 million Bitcoins that can be generated?

**Tags:** wallet, reward-schedule

> **Comments:**
> **username_1**: Yes. ECDSA has a limited keyspace, just like we can't keep generating different RIPEMD160 hashes. But will this **ever** be a problem? No! :)  

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## 1 answers

### Answer by username_2 on 2013-04-03. Score: 3 | Accepted answer

I think you are talking about Bitcoin addresses, those are considered disposable, consider this; a simple computer constantly generating Bitcoin addresses will generate all possible combinations in 69 [tredecillion](http://en.wiktionary.org/wiki/tredecillion) years.


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