MetroPCS says it is offering unlimited long distance and local service for $40 a month.

The wireless carrier claims to be the first to provide unlimited, anytime U. S. domestic long distance and local wireless service for one flat rate with no contract.

Since launching service last year, Atlanta-based MetroPCS has grown to approximately 900,000 subscribers over a 20-month period. This growth is attributed to the company’s flat rate offering of unlimited, “pay by the month, not by the minute” wireless service with no contract.

“Ever since we launched our wireless service, we have realized a positive response among consumers when they’re given the freedom to talk all they want for one monthly rate,” said Michael Johnson, regional vice president of sales and distribution for MetroPCS. “Now MetroPCS is further changing the face of wireless by providing unlimited service for long distance, making it even easier and more affordable for customers to communicate with anyone, anytime, to anywhere in the country.”

Earlier this quarter, MetroPCS test marketed the long distance offer and consumer response was very positive, the company says.