(09 Mar 2017, 6:51 am)cbma06 wrote The X5 is a express bus within Tyne and Wear boundary, you could say the same with service X6 and X7 also, having an X prefix before the number doesn't mean it's non stop, this has been talked about before on the Arriva thread especially on service X21/X22 in County Durham area.
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I was under the impression that the Arriva Durham County X21 X22 services where given the X prefix in preparation for the services to come under the MAX banner later this year.
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