Verified BIC/SWIFT • January 2026
OLD SECOND NATIONAL BANK
37 S. RIVER STREET AURORA,IL 60506-4172 UNITED STATES OF AMERICA
OLSNUS44
SWIFT Code Format Breakdown
OLSN
Bank Code
US
Country
44
Location
XXX
Branch
Official Institution Data
Legal Entity
OLD SECOND NATIONAL BANK
Primary City
Aurora
Related in Aurora
Secure Transfer
Verify transaction details before sending money in 2026.