Any toll-free number you call - at least within the +1 country code - can see your outbound number even if you hide it. So if you’re in the USA and you have ev

Any toll-free number you call - at least within the +1 country code - can see your outbound number even if you hide it. So if you’re in the USA and you have ever called your bank’s toll-free from your mobile they already have your cell phone number. you can try to sell yourself by googling for toll-free ANACs which will read your number back to you