| Business | Phone |
| 8x8 Inc 3151 Jay St, Santa Clara 95054 | (408) 727-1885 |
| Centile Inc 2445 Mission College Blvd, Santa Clara 95054 | (408) 907-8300 |
| Chung Hwa Telecom Global Inc 5201 Great America Pkwy, Santa Clara 95054 | (408) 988-1898 |
| Global Crossing 2953 Bunker Hill Ln # 202, Santa Clara 95054 | (408) 970-8380 |
| Intellify 5201 Great America Pkwy, Santa Clara 95054 | (408) 207-2000 |
| On Fiber Communications 3031 Corvin Dr, Santa Clara 95051 | (408) 962-2900 |