This station's in Zone 3 and has two platforms with trains travelling into London via the Blackfriars line and Thameslink, or heading in the other direction towards Sevenoaks.
Although Bellingham's quite a run down area, the station's very clean and quiet, and delays, thankfully, are few and far between. I can only speak for trains heading into London as I don't use the station for journeys in the other direction. It takes just 20 minutes to get to Elephant and Castle, travelling via Catford, Crofton Park, Nunhead, Peckham Rye and Denmark Hill stations.
Trains are very frequent up until 9:24am (between 9 and 15-minute intervals). After then, the trains are every half an hour.
I've never noticed the station to be packed and am always able to get a seat for my journey. The only thing that lets the station down is the trains should be more frequent than very 30 mins. read more