First Interstate Bank, Helena Touchmark Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Interstate Bank, Helena Touchmark Branch Main Office: No Service: Limited Service Mobile Office Location: 915 Saddle Drive Helena, Montana 59601 Lewis And Clark County View other branches Phone: 406-449-1246 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer092901272YN092901641YN092901683YY102300129YN From: To: