T-Mobile is widely expected to unveil a new set of wireless service plans at a special event set for March 26. The carrier, owned by Germany’s Deutsche Telekom (PINK:DTEGY) is ending subsidies on mobile devices.

The carrier, which preparing to merge with MetroPCS (NYSE:PCS), will offer a set of individual plans sold through its own stores, and a separate class of plans sold through retail partners across the country. The latter class of plans, called “Uncarrier classic,” are priced between $60 and $130 per month for data usage ranging between 500 megabytes and 12 gigabytes, TmoNews.com notes.

Subscribers can purchase the “Uncarrier classic” plans at leading retailers, including Walmart (NYSE:WMT), Best Buy (NYSE:BBY) and Target (NYSE:TGT). A plan with unlimited data, but no hotspotting, will be offered for $90 a month. The plans include unlimited calling and texting.

Since phones sold by T-Mobile will not be subsidized, all of the service plans are offered without the industry standard two-year contract.

T-Mobile is also preparing a number of “Value” plans, whose terms and pricing remain unknown, which will be offered through its own retail outlets.

Earlier this month, T-Mobile received clearance for its merger with MetroPCS from the Federal Communications Commission.