I started a new thread because the previous one was getting off topic. This is the original thread here: http://forums.macrumors.com/showthread.php?t=1349815 THIS ONLY APPLIES TO VERIZON IPAD 3 - ATT IS MUCH EASIER TO DEAL WITH! I purchased TWO sims off eBay. The first was a "full size" SIM cut down with a SIM PUNCHER to micro-size. This sim would not activate even after spending hours on the phone and in the store. Maybe I ruined it, maybe not. Maybe it was the wrong type, who knows, but it did not work. The second one was an actual Micro Sim (not cut down) on the original VZW display card. Put it into my iPad and was up and running in 10 minutes. This test solves a couple issues (mostly created by Verizon): #1) MOST VZW stores will not replace a bad sim card at this time. #2) VZW says "we don't have PRE-PAID LTE simms." They are wrong. There is no such thing as a "pre-paid LTE sim." It's only a regular sim. #3) If you are going nuts like I was and didn't want to deal with those VZW morons anymore and are willing to invest $5-$6 for peace of mind just buy a micro-sim off eBay and it will be fine. The one I got was from this seller: http://www.ebay.com/itm/290686170016 The return address on the envelope was: Verizon Wireless, 222 Merchandise Mart Plaza #213, Chicago IL 60654. Obviously a franchise (if that) and not a corp store. So if you are frustrated fighting with VZW or just want a couple extras SIMs don't be afraid to get it from eBay (or, at least, this seller) but MAKE SURE you get a micro-sim and NOT a cut down regular sim just to be 100% sure.