The Office of Communications, watchdog for the industry, has come up with an internet tool to tell you. Naturally you will need access to the internet to use the tool, which might prove to be a severe problem in some parts of this constituency. And even if you are able to use it the best the tool can do is tell you what sort of broadband speeds you should be getting, rather than what dismally slow speeds you are getting! However this official device is better than no device at all in the fight to improve broadband. Give it a try: http://maps.ofcom.org.uk/check-coverage/