I never give out my telephone number on forms etc, for you will just get bothered by people who waste your time. If a phone number is mandatory, I usually, accidentally of course, change one digit.

Lockheed Martin is unacceptable. There is a good website with ideas of what youy can do about it to make it expensive for Lockheed Martin (they rely on fast computer scanning of forms to make a profit - see link below). The 2nd & 3rd links below show what has been done in the UK (this seemed to have gone viral)

Lockheed Martin is also the contractor for census work in the UK (lots of protest) and in Australia (in August this year).