Verizon’s landline coverage map.

Verizon is working on a sale of its cellphone towers and a portion of its landline assets in a series of deals that could fetch the company more than $15 billion, according to a breaking report in the Wall Street Journal.

The company is looking to raise cash to pay down debt incurred when it bought out Vodafone’s 45% share of its wireless unit and to cover $10.4 billion in wireless licenses the company just won in a government auction last week.

The most likely targets in a landline sale are Verizon territories outside of the northeast.

Verizon has already dumped its landline assets in Hawaii (sold to Hawaiian Telcom), northern New England (sold to FairPoint Communications), West Virginia and many smaller city and suburban territories acquired from GTE (all sold to Frontier).

In its 2010 sale to Frontier, Verizon retained assets in the Tampa-St. Petersburg area, central Texas and Southern California regions. But now all three states are prime targets for a sale. Likely buyers include Frontier Communications, which already has a major presence in Florida including a national call center, and CenturyLink, which acquired Qwest and has a large service area in the southwest and western United States. Frontier remains the most likely buyer, having aggressively expanded its landline network in legacy AT&T (Connecticut) and Verizon service areas.

Verizon CEO Lowell McAdam has shown little interest in maintaining Verizon’s wired assets or growing FiOS and has been willing to sell off major parts of Verizon’s landline network to continue prioritizing Verizon Wireless. McAdam led Verizon Wireless from 2006-2010, before being named CEO of Verizon Communications.

He foreshadowed the forthcoming landline sale in January when he told an investor conference he was willing to make significant cuts to Verizon’s wired networks.

“There are certain assets on the wireline side that we think would be better off in somebody else’s hands so we can focus our energy in a little bit more narrow geography,” he said at the time.

Verizon is also expected to follow AT&T’s lead in selling off much of its cell tower portfolio. It will lease access to the towers it sells.

Verizon maintains FiOS networks in Texas, California, and Florida, but that is not expected to deter the company from selling its landline assets. Frontier acquired Verizon FiOS properties in the 2010 sale in both the Pacific Northwest and Indiana. Those services operate under the Frontier FiOS banner today.