Sonic.net provides Internet service in California using DSL networks. Sonic also has invested in Fiber in some areas.
Their DSLcomes in two types: VDSL or ADSL2, depending on the customer's distance from their local office.
In the field, DSL broadband signals are sent using copper phone lines delivering landline phone service.
Although DSL cables are less advanced than coaxial cable, phone wires are dedicated and connected directly to consumer residences instead of sharing within blocks. The direct connection makes DSL service more dependable during peak use times. Cable often slows during peak-use times, while DSL speeds remain consistent.
Sonic.net also offers fiber-optic networks in some areas. That said, because of the price for the company of installing fiber all the way to a subscriber doorstep, Fiber to the Home service is less widely serviceable than DSL network.