| Business | Phone |
| Areawide Cellular 4832 N Harlem Ave, Harwood Heights 60706 | (708) 457-0000 |
| Euro Center 4950 N Cumberland Ave, Harwood Heights 60706 | (708) 453-5500 |
| Cingular Wireless 4136 N Harlem Ave B, Harwood Heights 60706 | (708) 453-4695 |
| Cingular Wireless 4155 1/2 N Harlem Ave, Harwood Heights 60706 | (708) 457-0025 |