The Andover Bank, South Jefferson Branch Basic Info Reviews Routing Numbers Map & Direction Name: The Andover Bank, South Jefferson Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 100 South Chestnut Street Jefferson, Ohio 44047 Ashtabula County View other branches Phone: 440-576-5050 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer041208719YY043309713YN From: To: