National Bank of Arizona
| Status: | Inactive as of 12/31/2015 |
| Merger - Without Assistance | |
| Successor Bank: | Zions Bancorporation, N.A. |
| Headquarters: | National Bank of Arizona 335 North Wilmot Road Tucson, AZ 85711 |
| Established: | 03/01/1972 |
| FDIC Insurance: | 03/01/1972 |
| FDIC Cert: | #20626 |
| Charter Class: | Commercial bank, national (federal) charter and Fed member, supervised by the Office of the Comptroller of the Currency (OCC) |
| Total Assets: | $5,018,724,000 |
| Total Deposits: | $4,352,509,000 |
History
| 1972-03-01 | Institution established: Original name:Mission Bank | |
| 1982-01-29 | Changed name to Mesa Bank | |
| 1987-05-01 | Changed name to Zions First National Bank of Arizona | |
| 1987-12-31 | Acquired The Camel Bank, Incorporated (23570) in PHOENIX, AZ | |
| 1994-01-14 | Acquired National Bank of Arizona (25830) in TUCSON, AZ | |
| 1994-01-14 | Changed name to National Bank of Arizona | |
| 1994-01-14 | Moved bank headquarters from MESA, AZ to TUCSON, AZ | |
| 1994-04-29 | Acquired Rio Salado Bank (24153) in TEMPE, AZ | |
| 1996-05-31 | Acquired Southern Arizona Bank of Yuma (23932) in YUMA, AZ | |
| 1997-01-27 | Change trust powers from TRUST POWERS NOT GRANTED to FULL TRUST POWERS GRANTED | |
| 2000-07-28 | Acquired County Bank (24728) in PRESCOTT, AZ | |
| 2002-11-25 | Acquired Frontier State Bank (24227) in SHOW LOW, AZ | |
| 2007-01-18 | Acquired The Stockmen's Bank (23182) in KINGMAN, AZ | |
| 2015-12-31 | Acquired Amegy Bank National Association (24107) in HOUSTON, TX | |
| 2015-12-31 | Acquired Nevada State Bank (18113) in LAS VEGAS, NV | |
| 2015-12-31 | Acquired California Bank & Trust (20852) in SAN DIEGO, CA | |
| 2015-12-31 | Acquired The Commerce Bank of Washington, National Association (27298) in SEATTLE, WA | |
| 2015-12-31 | Acquired Zions Trust, Natioanl Association (57638) in SALT LAKE CITY, UT | |
| 2015-12-31 | Merged into and subsequently operated as part of Zions First National Bank (2270) in SALT LAKE CITY, UT | |
| 2015-12-31 | Acquired National Bank of Arizona in TUCSON, AZ | |
| 2015-12-31 | Acquired Vectra Bank Colorado, National Association (2993) in FARMINGTON, NM | |
| 2016-01-01 | Changed name to ZB, National Association (2270) | |
| 2018-09-30 | Changed name to Zions Bancorporation, N.A. (2270) |