Who called from 2075584492

This number occurred in a text message I received. The calling number was displayed as 1210100004. I presume it's some sort of porn outfit. Here's the text of the message:

FRM:778054684844718
MSG:hey, going on my webKam right now, a bit bored
txt me back and tell me what u wanna see he he 12075584492

I also just received a text message from:
FRM: 607457765254413 MGS: Hey!  I'm looking to meet new plp and I seen you on fb and thought u were cute.. txt me back @ 12075584492

Obviously this is a new way to solicit people.

Same number sent me:

FRM:113453171884371
MSG:Knnow what's on the menu? Me-n-u.,text ME 12075584492

t's rather strange because I do not give out my phone number unless absolutely necessary.

Forward the text messages to SPAM (7726) and request your carrier block the number.
Forwarding to SPAM alerts your carrier that the number is a spammer, they will investigate and take messages to stop the spam.
http://www.fcc.gov/guides/spam-unwanted-text-messages-and-email

If you have smart phones, there are many apps that can help you block unwanted messages and calls.
Check your phone's app store.