Maritime Telephone & Telegraph Ltd in Glace Bay, NS
These numbers are located in the city of Glace Bay part of Cape Breton county. There are a few other subcodes that cover this area as well so take care not to confuse them.
Cape Breton county is situated in Nova Scotia and operates AT (UTC -04:00) time. This number group covers the B1H, B1G, B1E, & B1B zip codes.