Who called from 2132719553

Odd. This number has just called me, and I have on my cable landline, the ability to see on my Computer screen and TV, who is calling.  Out of area, came up on 1st ring, then the 2nd ring, CPLA, came up, then as it continued to ring, Weatherby.  Just blocked it.

I just blocked that number and 3 other numbers from CPLA!  It's ever day! For the love of God would somebody stop this madness!!!

Caller ID shows "CPLA"
I've blocked this caller on three separate numbers:
(661) 202-3103
(661) 202-3383
(213) 271-9553

They've called several times a day for the last week and leave no message.

What type of scam is this?  Every time I block this number, they come back with a different number, or change the caller ID to Out of Area.  They've used:  323-210-4956, 626-263-9103, 661-292-3103, 661-202-3383 and now 213-271-9553.  Are the scammers using their personal cell phones to extract money or credit card numbers from victims?

multiple calls every day from CPLA from various numbers and different area codes. thanks FCC!