| Business | Phone |
| Line One Telecommunications Seattle 98104 | (206) 587-2309 |
| Splice Communications Llc 1619 8th Ave N, Seattle 98109 | (206) 623-7181 |
| Northwest Telephone 1833 N 105th St 100, Seattle 98133 | (206) 772-5000 |
| Ramtel Enterprises 1202 Ne 180th St, Seattle 98155 | (206) 441-7497 |
| Paracom Inc 17801 International Blvd, Seattle 98158 | (206) 242-3756 |