Ottawa City Area Code List
| Area Codes | Country | State | City | Time Zone | Operating |
|---|---|---|---|---|---|
| 343 | Canada | Ontario | Ottawa | Eastern | Details |
| 419 | US | Ohio - OH | Ottawa | Eastern | Details |
| 567 | US | Ohio - OH | Ottawa | Eastern | Details |
| 613 | Canada | Ontario | Ottawa | Eastern | Details |
| 785 | US | Kansas - KS | Ottawa | Central / Mountain | Details |
| 815 | US | Illinois - IL | Ottawa | Central | Details |
| 819 | Canada | Quebec | Ottawa | Eastern | Details |
| 873 | Canada | Quebec | Ottawa | Eastern | Details |