Colorado-based wireless broadband service provider WavMax Broadband snapped up Outback Broadband, an Arizona-based wireless ISP, for an undisclosed sum.

In July, WavMax announced the acquisition of two other wireless ISPs in the Colorado Springs, Colo., market: SpringsLink and Velocity Wireless Networks. The deals marked WavMax's third and fourth ISP acquisitions in Colorado. The company snapped up two metro Denver companies in 2004.

These four acquisitions cover Colorado's two largest metro footprints, and the company says it is closing in on a deal to expand its footprint to include the third-largest metro area as well. The company has yet to release details of the deal.

At the time of the SpringLink and Velocity purcases, WavMax said it expected to close on at least two more WISPs in adjacent states by year's end, of which Outback Broadband is one. The company said its acquisitions would to increase its revenues about 400 percent.

WavMax also recently deployed DragonWave's AirPair 200 Mbps product for an undisclosed high-capacity wireless backhaul project.