Key to Routing Numbers - FRBservices.org
https://www.frbservices.org/resources/fees/check-key-to-routing-numbers.html
WebEighth District Key Routing Numbers Federal Reserve Office Corresponding Routing Code Number Footnote 1; St. Louis: 0810, 0819, 0812, 0815, 0865: Little Rock: 0820, 0829: Louisville: 0830, 0813, 0839, 0863: Memphis: 0840, 0841, 0842, 0843
DA: 83 PA: 66 MOZ Rank: 12