MIAMI (CBSMiami.com) – AT&T is celebrating the most successful launch of an iPhone model to date.

The mobile carrier says 200,000 iPhone 4S’ were sold in the pre-order in just the first 12 hours, according to CNET.

READ MORE: Florida Condo Collapse Settlement Reaches, Tops $1 Billion

“AT&T has seen extraordinary demand for iPhone 4S with more than 200,000 preorders in the first 12 hours alone, the most successful iPhone launch we’ve ever had,” a company spokesperson said in a statement.

READ MORE: South Florida Man Accused Of Setting Wife On Fire, Hitting Her With His Car

The sale started out rather bumpy though, with many customers complaining about the inability to process eligibility through AT&T and Apple online sites.

MORE NEWS: Opa-locka Hialeah Flea Market Vendors: 'We have to leave like dogs'

Apple, Verizon and Sprint have not released their sales figures.