Has AT&T stopped O2 connecting in US Los Angeles - SOS HPLMN?

[Goibs]

I frequently travel to the US but recently I've found myself having no connection in LA, I have to manually roam to T-Mobile to get any network/service.

Does O2 have issues with AT&T?

Would it make sense that my HPLMN list is still forcing my phone to connect to AT&T? 

[MI5]

@Goibs 

T Mobile has been the favoured network for a while now.

We have been advising customers to use it instead of AT&T.

[Goibs]

Have O2 issued any comms relating to this? I have a few other business partners who suffer the same issue but O2 seem very reluctant to say anything.

Are they also going to update the HPLMN list to auto connect to T-Mobile instead of going to SOS.

[madasaf1sh]

@Goibs 

They dont need to as in some parts of the US AT&T works better than T-Mobile, looking at Vegas and Hawai'i and the Raleigh Triangle..

And AT&T is still a roaming partner, and checking the devices I manage I can see 30 devices roaming happily on AT&T and another 50 or 60 roaming happily on T-Mobile...

If you want to raise to your enterprise account manager then let them know...  (assuming you have an enterprise contract) or your business account manager.

I dont think I have seen a HPLMN network update for about 6 or 7 years, as they mostly get ignored by handsets now adays

[MI5]

@Goibs 

No idea.

You'd need to ask O2 that Guide: How to find help & contact O2 

[Goibs]

Thanks both @madasaf1sh @MI5