Here’s a pair of interesting lists from Friday’s Mobile Mix — the 50th “intelligence report” Millennial Media has issued since the mobile advertising network opened for business five years ago.

If you click to enlarge the chart at right, you’ll see that in March 2009, Apple’s (AAPL) iPhone was No. 1 among the top 20 smartphones in Millennial’s network, with a 5.82% share. In June 2011, 10 quarters later, the iPhone was still No. 1, with a 16.19% share. Research in Motion’s (RIMM) BlackBerry Curve is also there, No. 3 in 2009 and No. 2 in 2011.

Not a big surprise. What’s striking is that not one of the other 18 smartphones in the 2009 list — not the Samsung Instinct (No. 2), not the T-Mobile Sidekick (5), not the Palm Centro (7), not the LG Dare (9) — survived to make the 2011 list.

To be sure, Apple has released two models of the iPhone in the period covered — the iPhone 3GS and the iPhone 4.

But how many other smartphones have come and gone in those 27 months? And how many of the Androids that are so hot today will be around in 2013?

You can download the Millennium Mobile Mix report here.