TS postcode area
These cover north-east North Yorkshire ( post towns Middlesbrough , Redcar , Saltburn-by-the-Sea , Guisborough and Yarm ) and south-east County Durham ( post towns Stockton-on-Tees , Hartlepool , Billingham , Wingate and Trimdon Station ) . 
<triplet> North Yorkshire <subj> County Durham <obj> shares border with <triplet> County Durham <subj> North Yorkshire <obj> shares border with <triplet> Trimdon Station <subj> County Durham <obj> located in the administrative territorial entity