Apple iPhone <\/div><\/span> Dual SIM with an eSIM \u002D Change Default Cellular Data Number<\/div><\/h1>

If you use two phone numbers on your Apple®<\/span> iPhone®<\/span>, changing the default helps ensure data usage is billed to your preferred line. <\/div><\/div>

Before you begin<\/div><\/h2>

5G Ultra Wideband and 5G data connections are now supported while both the eSIM and physical SIM are activated with iOS 15 or later.<\/div><\/div>

The steps below apply to the following iPhone models:

iPhone XS \/ XS Max and newer models<\/div><\/li>

iPhone SE (3rd Gen)<\/div><\/li><\/div><\/ul><\/div><\/div>

Only one mobile number can use cellular data at a time. <\/div><\/div> <\/div><\/section><\/div> <\/div> <\/div>

Steps<\/div><\/h2>

Open the
Settings app<\/div><\/span>.<\/div><\/span><\/div><\/li>
Tap
Cellular<\/div><\/span>.<\/div><\/span><\/div><\/li>
Tap
°ä±ð±ô±ô³Ü±ô²¹°ùÌý¶Ù²¹³Ù²¹<\/div><\/span>.<\/div><\/span><\/div><\/li>
Tap the number you\x27d like to use for cellular data.<\/div><\/span>
If a line is active on a Second Number price plan (talk and text), don\x27t select the Second Number line for data use.<\/div><\/div> <\/div><\/div><\/div><\/li>
Tap the
Allow Cellular Data Switching switch<\/div><\/span> to turn on or off.<\/div><\/span><\/div><\/li><\/div><\/ol><\/div> <\/div>
<\/div>
Apple Support: Using Dual SIM<\/div><\/span><\/a><\/div> <\/div>