| Business | Phone |
| Avaya Inc 3520 Patrick St, Lake Charles 70605 | (337) 474-0364 |
| Bernard Communications Lake Charles 70605 | (337) 439-7750 |
| Corporate Communications Csltg 805 W Bayou Pines Dr, Lake Charles 70601 | (337) 436-3135 |
| Nexcomm 3427 Ryan St, Lake Charles 70605 | (337) 474-7779 |
| Williams Telecommunication Grp 1 Lakeshore Dr, Lake Charles 70629 | (337) 439-4909 |