How do I verify an instagram account without a cellphone?

Have US phone numbers?

always do verify by emails, never got a problem...

What do you mean by "always do verify by emails" paweo?

There are too many disposable virtual numbers out there to risk your account security with. This is why, for many who tried verifying through some of those free text me now apps, Instagram didn't even forward the verification request. The Facebook / Instagram team has worked hard to improve the technology to recognize where that number is coming from.