Update 2: AT&T says demand is higher than iPhone launches from the last two years (via Recode): “Demand for the new iPhones is higher than that seen in either of the past two years, AT&T spokesman Mark Siegel told Re/code.”
Update: All models of the 5.5 inch iPhone 6 Plus are now quoting 3-4 weeks shipping. Apple is still stocking most models of the iPhone 6, however.
The iPhone 6 and iPhone 6 Plus launch has not been smooth, to say the least. Many people are still unable to access the Apple Online Store to purchase Apple’s newest devices. Despite availability issues, many models are already selling out. Carrier websites are the first to be affected, naturally, as they always get less supply than Apple itself.
Both AT&T and Verizon are quoting three week shipping delays for the Plus, meaning customers buying now won’t get their phones until around the 7th of October. At the time of writing, the iPhone 6 is still available. At Apple’s own store, it seems like the 64 GB iPhone 6 Plus and the 128 GB iPhone 6 Plus is now also unavailable. However, the exact nature of supply is unclear due to the ongoing website issues.