I have received 2 phone calls - very late in evening (9:20pm) both nights from this phone number. The first time I answered and admonished the caller about calling our home at such an hour - my husband goes to bed at 8:00 because of his work schedule. I told her never to call our home again - that ordinarily we don't answer phone calls from unknown - aka - nuisance callers. The caller ID showed strange sequence: 7777158:8568724. I am going to look into how to take legal action because these 'private', 'annonymous', 'unknown' callers - and now the scrambled digits showing up on caller i.d. is out of control - we are getting an average of 6 calls a day!
Environmental survey. I asked why my yearly salary was important to an "environmental" study and refused to answer. Apparently, it was critical. She ended the survey.