Decatur City Area Code List
| Area Codes | Country | State | City | Time Zone | Operating |
|---|---|---|---|---|---|
| 217 | US | Illinois - IL | Decatur | Central | Details |
| 256 | US | Alabama - AL | Decatur | Central | Details |
| 260 | US | Indiana - IN | Decatur | Eastern | Details |
| 269 | US | Michigan - MI | Decatur | Eastern | Details |
| 402 | US | Nebraska - NE | Decatur | Central | Details |
| 423 | US | Tennessee - TN | Decatur | Eastern / Central | Details |
| 479 | US | Arkansas - AR | Decatur | Central | Details |
| 601 | US | Mississippi - MS | Decatur | Central | Details |
| 940 | US | Texas - TX | Decatur | Central | Details |