Very poor reception in house and calls go in and out or drop completely. Outside apartment I only get Edge, no 3G.

The crest of this hill always drops calls as you crest the crest. Even though the service signals pretends to indicate full strength on either side.

I have a clear view of Twin Peaks where there is allegedly an AT&T mast... but alas... .a swirling 1 bar reception to no 0 bar reception. I'm unsure if it's my fancy iphone or my lead lined house? come AT&T sort it out?!

Reception is appalling here; it typically varies between 1 and 2 bars and often drops totally. I was told by AT&T that my cellphone was the problem since it is unlocked. I believe this is simply part of the usual misinformation campaign of network providers.

just bought a condo and both my wife's iPhone and my Sony Ericsson X1 get awful (read: no bars) reception

I was very excited to get an iPhone until I brought it home and found no reception where I live. I am devastated and will consider taking back my fancy new iPhone in the next 30 days. I live in a condo and have the door intercom connect to my cell phone, no one can visit me right now, alas.

thankfully, I don't spend too much time on the phone, but if I did, I would have to switch from AT&T and not be able to use an iPhone. my old Razor got decent reception but the reception is pretty much 0-1 bar all of the time. I can't wait to ditch AT&T! should have bought an iPod touch and switched to Verizon!

Reception is acceptable. Consistently drops calls when traveling over the hill at Pac Heights. Inside my house is fine.

AT&T is worthless up here...

Pretty useless inside my ground floor apartment

3G coverage is 1-3 of 5 bars, but calls are alway clear even with only 1 or 2 bars. 1G / 2G coverage is nearly always 5 bars and takes over if 3G is not available.

No reception at work, spotty reception at home (best case)... .consistently dropping calls at both locations... .ATT&T is much much worse than Verizon, only switch because Verizon never gets the good blackberry's, cant wait for the thunder so I can ditch ATT

Signed up for AT&T with a spiffy LG Shine, had awesome service the first day, then I could hardly make any calls anywhere in the Mission. Guy at Best Buy said it was the phone, it wasnt, tried a Sony Erickson580 and had the same terrible reception. Im going back to Verizon.

I have work here for the last 17 years. Since I got AT&T I have no reception on Haight Street. This is the Cemetery for AT&T. I am calling them right now to cancel my service. I found out you can now terminate your service and they can no longer charge you for early termination. It is now ilegal to do so. In order to use my phone here I have to call my voice mail and check who call me. AT&T sucks! I was able to use Verizon here all the time. Thank you

ATT&T finally admitted that they sold several of their towers to TMobile in this area. As a result AT&T service is horrible in this area of the city. They have no current plans to address the problem.

Fantastic reception in the Inner Richmond and even get full signal in my house and at work in Berkeley.

Great coverage in my top level apartment and garage. Great coverage all around the city. Low levels of coverage in huge parking garages or hospitals... but that's to be expected. The T-Mobile network has been the most reliable for me here in San Francisco and worked fine on recent trips to Veil, Colorado, Santa Barbara, Monterey, and other spots in Norcal.

Aweful reception. If I do get one bar it usually drops my call eventually. Can only stand in one place in my apartment.

Very disappointed with AT&T's coverage in SF Bay area. It is shoddy at best. I go from full coverage bars to zero coverage bars at the drop of a dime, and my calls are frequently dropped.

Sprint has pretty good reception in most places around the city, especially in Downtown (mostly 4 or 5 bars). Few low reception spots, overall where I use it, it works great.