| Business | Phone |
| A & M Telecommunications 14743 Catalina St, San Leandro 94577 | (510) 618-1220 |
| Accra Communications 10940 Bigge St, San Leandro 94577 | (510) 638-9047 |
| Apm Communications 406 Begier Ave, San Leandro 94577 | (510) 635-2810 |
| Cbx Technologies 3007 Teagarden St, San Leandro 94577 | (510) 904-5340 |
| Pacific Telemanagement Svc 14472 Wicks Blvd, San Leandro 94577 | (510) 483-6502 |
| Pc Telecommunications 333 Estudillo Ave, San Leandro 94577 | (510) 357-7025 |
| Polk Communications 3007 Teagarden St, San Leandro 94577 | (510) 351-7380 |
| A & M Telecommunications 14715 Catalina St, San Leandro 94577 | (510) 618-1220 |
| Team One Solutions 14731 Catalina St, San Leandro 94577 | (510) 357-5555 |
| Tele Data Solutions Inc 15912 Cambrian Dr, San Leandro 94578 | (510) 276-2700 |