PPL Corporation, a utility company, delivers electricity and natural gas in the United States and the United Kingdom. It serves 321,000 natural gas and 397,000 electric customers in Louisville and 16 surrounding counties; and 543,000 customers in 77 Kentucky counties and 5 counties in Virginia. The company also provides electric delivery services to approximately 1.4 million customers in Pennsylvania; and operates electricity distribution network for the Midlands, South West, and Wales in the United Kingdom. In addition, it offers a range of customer-care and back-office services to competitive retail energy suppliers, including customer enrollments; contract management; electronic data exchange; simple and complex billing; and call center operations comprising telemarketing, payment processing, and collections of overdue accounts. PPL Corporation was founded in 1920 and is headquartered in Allentown, Pennsylvania.