A decline in subscribers at wireless providers like T-Mobile is affecting iPhone sales in the U.S.

Ahead of the expected debut of the iPhone 17 series on September 9th, data indicates that wireless carriers account for 75% of iPhone sales in the U.S. This highlights Apple's reliance on providers like T-Mobile, AT&T, and Verizon for initial sales and ongoing service subscriptions.

Carriers influence phone transactions, as representatives can steer consumers toward specific models. Data from Consumer Intelligence Research Partners, LLC (CIRP) suggests that iPhone owner loyalty to iOS diminishes when they switch carriers.

A recent CIRP quarterly survey found that 25% of phone buyers change carriers when purchasing a new smartphone. Android users tend to switch slightly more often than iOS users. For the year ending in June 2025, iPhone loyalty was 89%. However, this figure decreased among iPhone users who switched carriers.

The CIRP survey indicates that only 79% of iPhone users who switched carriers remained loyal to iOS. This number increases to 92% when the user stays with their existing provider. Overall, 89% of iPhone users remain loyal to iOS. This also suggests that 21% of those leaving their current carrier are switching from iOS to Android. CIRP suggests that carrier switching is more common among Android users due to the wider selection of compatible devices. Android users have a higher likelihood of finding a favorable deal with a new carrier compared to iPhone users.

Since many switch carriers to save money or improve signal, it is logical that these customers might consider a less expensive phone. These statistics will be relevant when Apple introduces the iPhone 17 series next month.

In other news, "Iconic Phones: Revolution at Your Fingertips," a tech-focused coffee table book, is set to be released in a few months. The book chronicles the technological revolution of the 21st century.