Lucky numbers are different for different people. So everyone thinks the lucky number is different, so the lucky number of mobile phone number is different in everyone's mind. Just like in Guangdong, the numbers 6 and 8 are very lucky. This is because these two numbers have certain homophones, namely, slip and hair. These two words are pronounced in Cantonese, so they sound auspicious. Therefore, many Cantonese people like to use these two numbers as the tail number of their mobile phones. At the same time, Cantonese people don't like it as the tail number of mobile phones, because the homophonic sound of the number four is unlucky.