What breaks when you travel on a data-only eSIM — checked country by country.
Japan · Large concert and event ticketing site
Probably not.
Users consistently report that Ticket Pia verifies a Japanese mobile number (070, 080 or 090) at sign-up. We couldn’t find a Ticket Pia policy page stating this, so treat it as reported rather than confirmed.
Consistent reports from users on Japanese Q&A boards. No company policy page found stating the rule.
How sure we are
This rests on consistent reports from travellers and guides, not on anything the company has published.
Next check
By 6 Nov 2026. Apps change their sign-up rules without notice; if you see something different, tell us at [email protected].
Won’t take a foreign number
Refuse lines without voice calls
Need a number that can receive a text
Work on a data-only eSIM on its own