Almost all order flows (like shoply, for instance) have phone number as a required field… But they do no validation.

You can just enter a fake prefix+number with plausible NPA.

You should use a fake prefix because you don’t want some poor random person getting your delivery updates…

Most don't spam texts, but those that do I've switched out. And yeah, I should probably use a fake number so whoever has Jenny's number in my area code doesn't get messages about how a toilet tank gasket is being delivered from Home Depot to my house...