+34915478023, Opera Station, Madrid, Spain

Payphone inside the metro network, this time located on "Opera" Station (down-town Madrid). This payphone RING LOUD and the audio works both ways. Thanks to Santiago who's becoming a regular contributor of working callable payphones.

+4420787693242, Pendennis Road, ADJ Odeon Cinema, Streatham, London, SW16 2SP

Two old style phone booths in this once afluent part of South London. The area has gone to the dogs in the last 15-20 Years. Never the less, here stands two lonesome payphones across the road on the right there. You sometimes get gangs of youth hanging around them.

+442089472190, Wimbledon Station, NR Gates ON Footbridge, Wimbledon, London

Emensly busy station. This pathway is the bring the connects everyone to each of the station's platforms. Keep calling it, people might be busy but your sure to get someone taking their commute in the slow stride. Oh and ask them if they've seen any of the Wimbledon Wombles.

+442088892628 & +442088892529, Wood Green Underground Station, London, N22 4HH

This is quite a vibrant place located in Wood Green North London. Was notorious for crime, and has recently seen a massive influx of Eastern European immigrants into the area. The boxes are usually used by them in the late evenings to call home (I guess). But you'll get someone almost always waiting in this area. Commuters arrive up from the escalator on the right and come trough the ticket barriers in the shot to leave the station. At a quite time you definitely be able to get the attention of the barrier operators featured in the shot. Both of whom I know and have worked here for a long time. Since this photo was taken the two payphones to the left have been removed, the numbers listed here are for the two remaining on the right.

+442088854798, Bruce Grove, OS 117, London, N17 6UR

A real urban payphone here. Doubt it gets much use (well not for phone calls), smelt of urine and was damaged quite bad. It does however ring very loud when called. It is also the scene of quite a lot of bother. Can at some point in the day find a police car or ambulance here attending to something or another. The building it's against is the local snooker hall and the bridge ahead is Bruce Grove train station the serves Liverpool Street Station.

+442086888699, West Croydon Station, British Rail Booking Hall, Croydon, London

Good chance of an answer here. This is in the main ticket hall and there's always people waiting around these payphones. The number is for the payphone on the left.

+442086843039, Brookmead Road, OS 1, London, CR0 3AR

Way out new the South London Tram Link between Croydon and Wimbledon. There phone box is a particular vandal target. You really won't get an answer here. Just posting it becuase I don't want it forgotten to the hate filled vandals. Pray for this box.

+442086471602, Stafford Road, New Sainsburys Store, Wallington, London, SM6 9BU

This is a great addition to the site and perfect for a good pranking. The payphone is nice and low (which is very unusual, but the best thing is that it's right next to the customer service desk of this supermarket. Rings perfectly loud too. Have fun.

+34915233486, Near Exit to Gran Vía Callao Station, Madrid, Spain

+34915233486, Near Exit to Gran Vía Callao Station, Madrid, Spain

Located inside the metro network of Madrid, in the "Callao" station near the exit to "Gran Vía".

In Spain, is almost impossible to call to the payphones on the street (if you try it, you'll hear SIT tones). However, I found that about the 50% of the payphones inside the metro are callable. This one not only is callable but also it RING LOUD and the audio works OK both ways. The "Callao" station is a busy and central one (many tourist and locals). I guess that from 6:30 am to 1:45 am (almost all day) there are good chances that someone will respond.

Many thanks Santiago for this great new addition. We hope and look
forward to many more from you.

+442084441994, Muswell Hill Broadway, OS 87, London, N10 3HA

Very busy high street and the box does still get used quite frequently.