Got a call from this number in the AM.  They left no message.  I live in Arkansas so it is strange to be getting calls from California in the early morning.

I know for sure that this number is what shows up on my friend's phone bill when her mother calls from Korea.  I'm sure the repeated calls could be an international caller who is trying to contact someone overseas, hence the odd hours.  It is likely your numbers were reached because the caller mistyped the long sequence of digits required to go through the system.

I said Hello a few times and no one responded. I hung up. In a few minutes again, this number called but it was just dead air when I answered.

had 2 missed calls on my cell phone from 213-629-2696.  No message was left.   The calls were about 30 minutes apart.

Woke me up at 4:30am calling 3 times in a row and hanging up! I could hear the hangup... not like an automated thing... sounded like a person clicking the phone to hang it up. The number comes up on an online search to a telemarketing place in LA but when you call it it says it's disconnected.