According to MacRumors, the addition of the iPhone to GoPhone's lineup is part of a larger expansion of services set to take place on Friday, as AT&T will start offering prepaid customers access to its LTE and HSPA+ data network for the first time.
While iPhone owners have been able to use the prepaid service for some time, the terms never allowed for data network access, rendering many of the Apple handset's capabilities useless.
Pricing will be arranged in three separate packages. At the top is a $65 per month plan which comes with unlimited calling and 1 gigabyte of data, while both the $50 and $25 monthly voice plans require an add-on fee for data.
Existing iPhone owners using GoPhone will automatically be updated with data access on June 21, though they have the option to manually upgrade to the new service.
The news comes amidst a strong push for the iPhone from other U.S. prepaid carriers like Virgin Mobile, which last week debuted a 15 percent discount for iPhone 5 purchases made through its website. Regional carrier Cricket Wireless helped raise the handset's marketshare after kicking off sales last year, while a rumored deal with Boost Mobile is said to be in the works.