Wing, the drone delivery service owned by Alphabet, is expanding its operations into seven additional U.S. cities as part of its alliance with Walmart.

This growth initiative is part of a larger strategy to establish a drone delivery network spanning over 270 Walmart locations by the next year. The newly included markets are Memphis, New Orleans, Philadelphia, Phoenix, San Diego, the San Francisco Bay Area, and Salt Lake City, increasing Wing and Walmart’s combined service area to close to 20 U.S. markets.

Wing is currently providing Walmart items to customers in Atlanta, Dallas-Fort Worth, and Greater Houston. The company has also revealed plans to expand into Orlando, Tampa, Charlotte, St. Louis, Cincinnati, Los Angeles, and Miami.

Walmart has been testing drone delivery for several years. However, after seeing success with Wing in Dallas-Fort Worth and Atlanta, it has amplified its efforts. In January, the two companies unveiled plans to extend the on-demand drone delivery service to an extra 150 Walmart stores.

The key takeaway: A greater number of consumers are utilizing drone delivery than you might realize. Wing has achieved over 1 million commercial deliveries through its partnership with Walmart.

Wing’s chief business officer, Heather Rivera, shared with TechCrunch in January that the top 25% of its customers use the service three times weekly.

“Our collaboration with Walmart has demonstrated that drone delivery isn’t merely a gimmick; it’s a service many customers rely on repeatedly each week,” Rivera stated in a release announcing the new markets.