| Business | Phone |
| Arbinet-Thexchange 441 Old Newport Blvd, Newport Beach 92663 | (949) 631-1242 |
| Genesys Conferencing 895 Dove St, Newport Beach 92660 | (949) 851-4740 |
| Telecommunications Consulting 5000 Birch St, Newport Beach 92660 | (949) 475-6820 |
| Mci 4023 Birch St, Newport Beach 92660 | (949) 752-2830 |