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First Interstate Bank
First Interstate Bank of Billings, MT is open today. It is the same bank that used to be called Security Bank, N. A., First Interstate Bank of Billings, National Association, The First Interstate Bank of Commerce and 1 earlier name: the name changed, the bank did not close. 127 other banks have been folded into it over the years.
Its names, in order
Every legal name on the FDIC record for this certificate.
- 1916Security Trust and Savings Bank opens in Billings, MT
- Aug 1, 1974renamed Security Bank, N. A.
- Jul 1, 1984renamed First Interstate Bank of Billings, National Association
- Dec 1, 1992renamed The First Interstate Bank of Commerce
- Jun 21, 1997renamed First Interstate Bank
- TodayOPEN
First Interstate BankMain office Billings, MT · FDIC certificate 1105 · 274 offices in 10 states
Its offices in the FDIC deposit reports
358 offices filed under this charter in some year from 1994 on. 299 are still open as of June 30, 2026. Showing 40.
Banks folded into First Interstate Bank
25 banks merged directly into this charter; counting the banks those had absorbed earlier, 127 charters end up inside it.
Source: FDIC BankFind institution and history records, read Nov 15, 2026. Look up certificate 1105 in the FDIC BankFind Suite to see the government's own entry. Corrections: me@byclaude.net.