What does No Caller ID mean on an iPhone?

Last night about 12:30am I got a phone call from a number listed as "No Caller ID". I answered without thinking and it was obviously a prank call because they proceeded to say sexually explicit things to me and call me a name before I just hung up. What's freaking me out now is they knew my name. Usually I'd just brush it off to it being one of my friends or someone who has my number/got my number from someone I know, but what's throwing me off is usually calls where the person is intentionally hiding their number come through as "Blocked" but this didn't. So yeah basically I'm just wondering what "No Caller ID" means and if I can in any way find out their number.

Wanting to get the iPhone 6? - 1

So I currently have the iPhone 4 and I desperately want to upgrade to the latest iPhone 6. My contract ends in December for Verizon, but I'm considering buying out the contract (350$) and just getting the iPhone 6.

My question is, is that all I have to pay to have the iPhone 6? Yes, I know you have the same monthly bills and have to pay for the phone, but is there any other charges you have to pay? All I see is paying the 350$ and then I'm set to buy the 6.

Why doesn't the iPhone have a black emoji?

They got
They got Tyler
They got jose
They got lupita
They got Mary
They got grandma ann
They got got grandma joe
They got britney b|tch
Where's the blacks at on the emoji?

Iphone 4 unlocking and forgotten password?

This is gonna be long but thanks for reading and answering
So about the time the iphone 4 came out my mom somehow got it at a phone store they said they would unlock it but never did (this was before apple when apple was only with att) we were basically scammed i guess
but i didn't really care much i just used it mainly as an (expensive) ipod. I jailbroke it and it was awesome haha i loved it but then i guess the battery died (it would turn off if it wasn't connected to the charging cable) and i didn't realize it then so i kinda just threw it off to the side for two years until a few months ago when i tried to play with it and then my stupidself forgot the password since it was just off for two years and i kept on trying to figure out the password and it was basically locked for eternity so i tried to restore it and there was like an error i think it was like error009 or something and now it is stuck in recovery mode and this guy wanted an iphone for cheap so i decided to try fixing it up for him
i just bought a new battery to change myself and after doing that i'm hoping the restore will work
i've never used att as a carrier so i don't know how to unlock an att iphone 4 to t-mobile? And i don't want to jailbreak it again so is there anything that i can do to unlock it with out paying a website or taking it to a shop?
thanks
i also use tmobile by the way

Added (1). its been two years since i bought it from the store so i doubt that theyll do something about it but ill try calling them up as a last resort if i can't unlock it myself

Should I ask my grandma to take me shopping right after she bought me an Iphone 5s?

So this weekend I just received the iPhone 5s and let me tell you it is the most awesome **** I've ever had. But I've also really wanted to go shopping for clothes or something, but I'm too afaid to ask because it might sound too ungrateful and I don't want to seem like some money hogginlittle *****. So should I ask my grandma to take me shopping or keep my mouth shut?