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Sprint iPhone 6S repeatedly attempting to connect to B13?


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I have a sprint iPhone 6S and I've noticed that my phone attempts to connect to LTE band 13 with an EARFCN of 5230 when I'm roaming. It does this every few minutes or so for a second or two and then drops back to 1x. Isn't B13 Verizon? Why would my phone be doing this?

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How do you notice this?

 

-Anthony

The little LTE thing icon appears at the top every few minutes for a few seconds so I sat with the field test number dialed into phone and clicked it as soon as I saw it. I was able to pull up a field test and see the stuff under Serving Cell Info before my phone dropped back to 1x.

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I was in an area where B5 LTE was the only available LTE network and my Nexus attached to it for a few seconds, but failed authentication. Never happened again since. It dropped back down to eHRPD.

 

Sent from my Nexus 5X

Wonder whos band 5 it was.

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It was AT&Ts.

 

Sent from my Nexus 5X

Thought so. It failed to connect cause, sprint doesnt have a roaming agree with at&t. Just like Sprint doesnt LTE roam onto Vzw.

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