Numbers ending with repeated digits (such as -1111) are heavily advertised by taxi and food delivery companies; the Pizza Pizza chain has trademarked 967-1111, a Toronto local number.
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Other possible numeric indicators which convey specific meanings are 24/7 (twenty-four hours a day, seven days a week) or 2-4-1 (two for the price of one); the latter is used by 241 Pizza by advertising local number 241-0-241 or a variant.
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