Could the vim be coming back to the US MVNO market? Sprint’s on a roll at the moment having singed four virtual network operator contracts in the six months since it launched a turnkey MVNO package.

On Monday, Sprint said has signed deals with four MVNO partners interested in offering post paid wireless services under their own brand – Long Distance Consolidated Billing Company (LDCB), NPG Cable, Call One and Baja Broadband.

NPG will offer a quad play bundle combining video, internet, home phone and cell phone service, while Chicago-based Call One will offer a single source for integrating voice, data, video and internet services with phone systems and network equipment, wiring, installation and management.

Baja Broadband will enhance its broadband cable system in New Mexico, Colorado, Utah and Nevada and LDCB will bolster its wireline long-distance service with wireless.

The MVNO Industry Summit will take place in Barcelona, May 11 – 12, 2010