Unknown number keeps texting me a blank message?

A number keeps texting me a blank message, but instead of a number sending it to me, it simply says Unknown. I thought it was an error in something, then it happened two more times. Is it a person or just something messing up? I mean they're not saying anything, it's like they clicked the space button and sent the message. By the way, I have an iPhone.

There are apps that block people from calling you so download one.

Hmm… I've had text messages like that which I reported to my telephone service provider right away. I found out that the sender actually blocked his phone number from showing. So what the telephone company did, they checked on the my records and located the information about the sender. It turned out to be my ex.

We got back together after some time but I didn't tell him my little secret. At first, I thought he was just a prankster so I reported his phone number to http://www.callercenter.com as a nuisance.

  • Why does my iPhone not make a sound when I receive a text from an unknown number? When I get a text message from a number that is not in my phone, my phone lights up and shows that I have a text but does not make a sound or ring. Can I change that somehow? I have an iPhone 5.
  • Why did my number show up as unknown? I called my boyfriend and my number came up as unknown, even though I didn't call on private. Any idea why? I have an iphone 4.
  • Why did I get a text message from an Unknown number? So I have an iPhone 4 and I got a text message from an Unknown Number. Not a number that I don't know, it literally said "Unknown" where the number was supposed to be. There was no text in the message, and I responded with, "Hi, who's this?" and I got one of those error messages in return. What does this mean? How do you even send a text message from a blocked number?
  • Unknown iPhone passcode set by unknown person? A passcode has been set on my iPhone without me knowing, now it is locked up. It says here to connect it to my computer and back up then restore my iPhone. Will this clear everything off my phone or will it be the same as it was before it got locked? I have only attempted unlocking it about 5 times in fear of disabling it. I do not want to back up then restore it if it will clear everything off and transfer it to the computer. Are there any alternatives to unlocking my iPhone?