How's this possible?

Source: Ever Get A Phone Call From Your Own Phone Number? – NBC 5 Dallas-Fort Worth

"We've learned to ignore those spam callers, so they've come up with a new way, calling you, as you. People immediately see their number show up on their caller ID"

Anyone know how they do this?

Thanks for point this out--I hadn't heard of this until now. The wikipedia link below sort of explains this spoofing. The fact that spoofing is legal in the US along with privacy protection for caller ID anonymity, as well as law enforcement limitations, seems to throw a wrench into putting a stop to such practices. These spoofed calls to myself will not be so bad as long I hear "I just called to say I love you", which will make these calls even more recognizable.

I love how in the wiki link it says in the United States:

"Caller ID spoofing is generally legal in the United States, unless done "with the intent to defraud, cause harm, or wrongfully obtain anything of value"."

I do not know what other purpose of spoofing there is other than what is above.

I'll get calls that are spoofed. The phone number is almost the same as mine.