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I have AT&T and never have problems in this area. Voice and data are great. I always drop calls in downtown los angeles though.

Difficult to keep a call without dropping. AT&T says reception is good and not a problem on their end.

AT&T service in Altadena is terrible. As you drive across Altadena there are many dead zones. Do not use AT&T if you live in Altadena.

Had Verizon and that dropped calls perpetually, voice mails didn't show up for days. Have AT&T now and at first it was OK (not great, but far better than Verizon). That lasted a couple of months and now it is almost as bad as Verizon was. Walk around the house - on the south side the reception is better, in desperation I move to the driveway or backyard, but that's not fantastic either.

All incoming calls drop within 30 seconds of answering. Cannot make outgoing calls.

Almost always calls drop after I answer incoming calls within 30 seconds. Cannot place outgoing calls.

signal for my phone and several of my friends who have AT&T is out. No phone or internet.

Work perfect.. Unfortunately, it's not the case a works and in the city (many drop call,... )

95% of the time no reception at all. 5% of the time, phone will ring, but signal not strong enough to handle a phone call.

Have to walk outside of the house towards the street, find a decent reception spot near the curb, face a particular way, cough twice, then hope the line doesn't drop. Bottomline, POOR reception.