(17 Sep 2013, 8:40 pm)fozzovmurton wrote East Durham villages south of Peterlee(Wingate, Trimdon, Castle Eden, Station Town, Blackhall etc) have Teesside Postcodes, a Hartlepool Dial Code despite being Co. Durham
Houghton-le-Spring has a County Durham post code but its part of Sunderland, and Seaham and Peterlee has a Sunderland Postcode but there in County Durham area.
When the areas got changed, there never bothered changing the postcodes as it will confuse the postman lol.