The Bryn Mawr Trust Company, King Of Prussia Office Branch Basic Info Reviews Routing Numbers Map & Direction Name: The Bryn Mawr Trust Company, King Of Prussia Office Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 197 E Dekalb Pike King Of Prussia, Pennsylvania 19406 Montgomery County View other branches Phone: 610-265-2060 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer031101059YN031908485YY031976200YN231371964YN From: To: