| Business | Phone |
| Apollo Communications 4322 W Northern Ave, Glendale 85301 | (623) 939-2240 |
| C & M Communications Po Box 6176, Glendale 85312 | (623) 930-7100 |
| Radiocomm Po Box 11472, Glendale 85318 | (623) 907-9500 |
| Call-Tech 6104 W Marconi Ave, Glendale 85306 | (602) 565-9343 |
| Callcom Southwest Lic Glendale 85308 | (623) 825-2900 |