The iPhone 4S is selling like hotcakes, carriers have reported, both in stores and online.

In the D.C. region, Verizon spokeswoman Melanie Ortel said that the carrier is happy with its online, pre-order and in-store sales saying that sales have been “brisk.” Sprint product chief Fared Adib said in a statement that the company, which had its first-ever iPhone launch with the 4S, “reported its best ever day of sales in retail, web and telesales for a device family in Sprint history” as of 1 p.m. Eastern time.

Some AT&T customers have been reporting problems with activations, but AT&T says that it’s not seeing any widespread delays at this time.

In a statement, AT&T said that, as of 4:30 pm EST, the company “had already activated a record number of iPhones on our network — and is on-track to double our previous record for activations on a single day.”

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