Hamilton City Area Code List
| Area Codes | Country | State | City | Time Zone | Operating |
|---|---|---|---|---|---|
| 205 | US | Alabama - AL | Hamilton | Central | Details |
| 217 | US | Illinois - IL | Hamilton | Central | Details |
| 252 | US | North Carolina - NC | Hamilton | Eastern | Details |
| 254 | US | Texas - TX | Hamilton | Central | Details |
| 260 | US | Indiana - IN | Hamilton | Eastern | Details |
| 269 | US | Michigan - MI | Hamilton | Eastern | Details |
| 289 | Canada | Ontario | Hamilton | Eastern | Details |
| 315 | US | New York - NY | Hamilton | Eastern | Details |
| 406 | US | Montana - MT | Hamilton | Mountain | Details |
| 441 | US | Montana - MT | Hamilton | Mountain | Details |
| 513 | US | Ohio - OH | Hamilton | Eastern | Details |
| 609 | US | New Jersey - NJ | Hamilton | Eastern | Details |
| 620 | US | Kansas - KS | Hamilton | Central / Mountain | Details |
| 662 | US | Mississippi - MS | Hamilton | Central | Details |
| 706 | US | Georgia - GA | Hamilton | Eastern | Details |
| 816 | US | Missouri - MO | Hamilton | Central | Details |
| 905 | Canada | Ontario | Hamilton | Eastern | Details |
| 978 | US | Massachusetts - MA | Hamilton | Eastern | Details |