I am not really trying to comment on reception, but rather, that this map is missing about 85-90% of the known cell towers that exists around the Washington DC area. Why? What good is a site that only shows a few cell towers, when I know, there are many, many more that are missing from these maps, all around the area, and the beltway? Who is supplying information to this site? How is it updated? There are plenty of Android apps and iPhone Apps that show the many towers that are missing from this site. Also, all you ave to do is drive around the major roads, and you see that this site is lacking.

i have reception, but no data, and it drops the call, I asked my friends who has t mobile also, the having same problem

Zero signal-bars here where T-Mobile says "fair reception." Verizon Wireless service at same location on Blackberry was good. T-Mobile's answer is that it is putting up thousands of new antennae every year. Not here though!

Never have had problems getting voice or data coverage from my office building.

Poor reception. T-Mobile coverage maps 'claim' to have "GREAT" coverage in this area, but it is extremely spotty, lots of dropped calls and dead zones.

AT&T reception is poor and often drops out as other comments in this area T(ysons tollway Wolftrap) have noted. Beware deals offering "free phones" and cool features on phones for teenagers. It is the longer lasting effects of the service or lack of therein that are important.We will switch providers.

AT&T signal varies from very poor to none.

Poor reception in some sections of Waterford HOA, great reception nearest Oakton High School.

Phone will ring sometimes, but it is never possible to talk.

Put in a SOHO repeater with mixed results. Outside RX measurment showed -104dbm which is too low for any reliable coverage (need at least -95). Verizon was just as bad but I don't know the signal strength. I switched to AT&T to get the iPhone and because AT&T's coverage map showed this area as their "best reception." What a joke!

I live right behind the Tysons Corner Sheraton hotel, which has a big cell antenna array at the top of the hotel tower. I can unscrew the antenna from my phone, and still get five bars, and make perfect calls! I wonder how much radiation is frying my brain right now. That probably explains alot... ... ..

from Chain bridge road all the on Lawyers road no signal.

Dropped calls and terrible voice quality inside the house. Signal is more consistent outside of the house although signal strength seems to vary wildly and unpredictably.

Constantly dropped calls within the house. Outside of the house, reception is acceptable although weak.

usually getting two bars, sometimes one and sometimes no service. Rarely get no service though.

Not great reception for conversations, but decent for to-the-point calls.

Poor reception in Vienna Park apartments, especially on First floor. 1 Bar if I walk outside

T-mobile has the worst reception in this area. After wasting over a year on dropped calls or no reception at all I was told by the oh so helpful people at Cingular that I lived in a "Marginal service area" and that it would continue to be that way for at least the next few years!! I told them they could have Freakin told me that before I signed a 2 year contract! Beware and check what service area you are in before signing with any cell phone service! I have Cingular now and it has excellent reception in vienna.

Terrible reception. 90% of the time I cannot make calls or they are quickly dropped.

Terrible reception on the west end of Tysons Corner. A Sprint phone I have periodically has much better reception.