Issue Started at approx 6:00 PM EST on Oct 25 2012. Issue Resolved at approx 2:15 AM EST on Oct 26 2012. Customers Effected Nationally... Was experiencing technical difficulties with LTE on my IP5. Ran a few tests of my own such as field test signal levels, flipped off the network through airplane mode and shut down phone completely - still no LTE. Phone also liked going between "No Service" and 1 bar, then went to 3 bars suddenly, then back to nothing. Signal levels were -93 to -107... At one point it shot up to -130, ouch! Spent an "hour" on hold with AT&T, tier 1 rep did tests and was not aware of any outage (despite the fact of the long wait and a message saying "Customers in the SouthEast may experience longer than normal hold times)... Well, finally transferred to a tier-3 rep and he confirmed they are swamped. Most of Cali is down, most of the Carolinas, Georgia, Arizona etc is down. How does something this major does not make headlines, I'll never know. Also has anyone on AT&T experienced a glitch when switching from Allowing your caller ID to be displayed - all data cuts out and then re-aquires. Strange. Maybe one of those 6.0 glitches?