Glendale City Area Code List
| Area Codes | Country | State | City | Time Zone | Operating |
|---|---|---|---|---|---|
| 323 | US | California - CA | Glendale | Pacific | Details |
| 513 | US | Ohio - OH | Glendale | Eastern | Details |
| 541 | US | Oregon - OR | Glendale | Mountain / Pacific | Details |
| 602 | US | Arizona - AZ | Glendale | Mountain | Details |
| 623 | US | Arizona - AZ | Glendale | Mountain | Details |
| 818 | US | California - CA | Glendale | Pacific | Details |
| 928 | US | Arizona - AZ | Glendale | (UTC-7) | Details |