Last modified: 2014-08-05 23:34:27 UTC
The default number of items per page on Special:BlockList is 50, but when first opened, it will display 500.
Hmm, can't reproduce in local test environment with 1.24 master and not on mediawiki.org: https://www.mediawiki.org/wiki/Special:BlockList Have you an example wiki or a special configuration or something else?