| Business | Phone |
| Action Paging 709 E Pecan Blvd, Mcallen 78501 | (956) 687-5858 |
| Security Service Systems 600 Ash Ave, Mcallen 78501 | (956) 686-2711 |
| A C Marketing 1207 N 20th St, Mcallen 78501 | (956) 994-0978 |
| Advanced Paging 600 Ash Ave, Mcallen 78501 | (956) 631-7243 |
| Argus Security Systems Inc 314 Ash Ave, Mcallen 78501 | (956) 682-6344 |
| Beepcom 920 W Houston Ave, Mcallen 78501 | (956) 778-9294 |