Routing Number | Bank Name | Bank Address | Phone Number | Change Date |
| |
| | | |
| 303184610 | OK FEDERAL CREDIT UNION | 3900 SE ADAMS RD, BARTLESVILLE, OK 74006-0000 | (918) 335-1844 | 2009-10-20 |
| 303986151 | OK MEMBERS FIRST FED CREDIT UNION | 10832 E 31ST STREET, TULSA, OK 74146-1701 | (918) 663-2050 | 1997-03-20 |
| 263277887 | OKALOOSA CTY TEACHERS FCU | 1126 NORTH FERDON BLVD., CRESTVIEW, FL 32536-0000 | (850) 682-2225 | 2003-09-11 |
| 103103095 | OKEMAH NATIONAL BANK | P O DRAWER 151, OKEMAH, OK 74859-0151 | (918) 623-1211 | 1993-04-01 |
| 073904447 | OKEY VERNON 1ST NATL BK | 701 DAVIS, CORNING, IA 50841-0000 | (641) 322-3101 | 2002-01-22 |
| 103101848 | OKLAHOMA BANK & TRUST | 600 GARY BLVD, CLINTON, OK 73601-0000 | (580) 323-2345 | 2002-04-29 |
| 303986096 | OKLAHOMA CENTRAL CREDIT UNION | P.O. BOX 471227, TULSA, OK 74147-0000 | (918) 664-6000 | 1998-01-30 |
| 303986397 | OKLAHOMA CENTRAL CREDIT UNION | PO BOX 471227, TULSA, OK 74147-0000 | (918) 664-6000 | 2008-07-01 |
| 303085353 | OKLAHOMA EDUCATORS CREDIT UNION | 6001 N W EXPRESSWAY, OKLAHOMA CITY, OK 73132-5106 | (405) 722-2234 | 2008-09-08 |
| 303085214 | OKLAHOMA EMPLOYEES CREDIT UNION | P.O. BOX 24027, OKLAHOMA CITY, OK 73124-0000 | (405) 602-6328 | 2004-03-19 |