Most Ashkenazi siddurim note that some have the custom of touching the arm and head tefillin (and then touching the fingertips to the lips) upon reciting the verse
.פּוֹתֵחַ אֶת-יָדֶךָ; וּמַשְׂבִּיעַ לְכָל-חַי רָצוֹן
during Ashrei.
Which communities have or had this custom?
I'm interested in the general Ashkenazi custom but also more specifically the Yekke practice.