phone restricted to one carrier
What is carrier lock?
A software restriction that prevents a phone from using SIMs (physical or eSIM) from carriers other than the one it was originally sold by.
How does carrier lock matter for travel.to?
Common on phones financed through US carriers (Verizon, AT&T, T-Mobile, EE, Vodafone UK). The eSIM hardware works, but the phone refuses foreign profiles. Most carriers unlock automatically after 60–90 days of paid bills; you can also request an unlock from their support.
Related terms
Things you'll meet alongside carrier lock.
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