Who called from 5035630002

Got a call from 503-563-0002 at 4:14 pm on the 27th of October on the office phone. It says  NOT IN SERVICE on the caller ID and no message left.

Got a call from 503-563-0002 identified as NOT IN SERVICE and there was no one on the other end.

I keep getting calls from this number ON MY WORK phone, which is private. I'm not sure how they even got this number because it doesn't even come up on caller-IDs, It's very irritating. I never answer.

I just got a call from this number in my classroom? It said "Not in Service" on the phone, creepy. I answered and nobody was there, then the dial tone came on. odd.

nuisance call - left NO message - probably many calls (unsure because just got caller ID)