URL of ubuntu official public mirrors?

[Valeri Galtsev]

Is there some URL where all official public ubintu mirrors are listed? I
seem not being able to find anything on the official website:

http://www.ubuntu.com/

Thanks.
Valeri

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Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
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