First Tennessee Advances in J.D. Power and Associates Banking Satisfaction Rankings; Bank is Second in Southeast Region for Customer Satisfaction

MEMPHIS, Tenn., June 11, 2008 (PRIME NEWSWIRE) — First Tennessee Bank, a subsidiary of First Horizon National Corp. (NYSE:FHN), advanced to second in the southeast region overall customer satisfaction in the J.D. Power and Associates 2008 Retail Banking Satisfaction Study. The bank was ranked third in the region in the previous year’s study.

The 2008 study was based on responses from nearly 20,000 households across the nation about their experiences with their primary banking providers. First Tennessee performed significantly above average for its convenience and product offerings.

“A commitment to superior customer service has been a hallmark of First Tennessee throughout the bank’s history,” said Charles Burkett, president of Tennessee and national banking for First Horizon National Corp., First Tennessee’s parent company. “We are proud to receive this recognition from J.D. Power and Associates and recognize the efforts of our employees who made it possible.”

About J.D. Power and Associates

Headquartered in Westlake Village, Calif., J.D. Power and Associates is a global marketing information services firm operating in key business sectors including market research, forecasting, performance improvement, training and customer satisfaction. The firm’s quality and satisfaction measurements are based on responses from millions of consumers annually. For more information on boat ratings, car reviews and ratings, car insurance, health insurance, cell phone ratings, and more, please visit JDPower.com. J.D. Power and Associates is a business unit of The McGraw-Hill Companies.

About First Horizon

The 10,000 employees of First Horizon National Corp. (NYSE:FHN) provide financial services to individuals and business customers through hundreds of offices located in more than 40 states. The corporation’s three major brands — FTN Financial, First Horizon and First Tennessee — provide customers with a broad range of products and services including:

* Retail/commercial banking, with the largest market share inTennessee and one of the highest customer retention rates of anybank in the country * Capital markets, one of the nation’s top underwriters of U.S.government agency securities * Mortgage banking, one of the nation’s top mortgage originators andrecipient of consecutive awards for servicing excellence fromFannie Mae and Freddie Mac. Upon closing of the sale of its retailand wholesale mortgage offices nationwide and its loan originationand servicing platform outside Tennessee, the company will continuethis business in its First Tennessee Bank markets in and aroundTennessee.

FHN has been recognized as one of the nation’s best employers by AARP and Working Mother magazines. More information can be found at www.fhnc.com

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CONTACT: First Horizon National Corp.Charles Burkett901-523-4502Media RelationsAnthony Hicks901-523-4726