Scam Call naglayas

How high are the chances that this is a scam. An unknown number called me, saying that my number was given by his naglayas na anak, and ask where is location of my number is from. I reluctantly said, I was from Manila. With that I got concerned that I may be sharing information that may put me at risk. After that, several calls keeps on coming and I didn't answered it as I know my number is only known by my relatives.