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They will not ask you for a phone number to call.</p>
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No they won’t get suspicious. It’s very possible that the teachers don’t know what goes on in his life outside of school.</p>
<p>Just don’t worry about it. They won’t ask for a phone number and they will not call. They only verify your verifiable ECs such as first place in USAMO or something like that, and they only randomly do it to 5% of the applicants.</p>