Where did Hangzhou Telephone 63 start?

If you receive a caller ID call starting with "63", this is generally not a long-distance area code, because domestic long-distance calls start with 0 and international long-distance calls start with 00.

Numbers beginning with 63 can be special service numbers, local fixed telephone numbers, mobile phone numbers, Internet phones and devices that can modify caller ID numbers.

You may also need to add 0 or 00 before 63, and it may be the most practical to inquire about the domestic telephone number "063" or the international telephone number "0063". ﹏<； )o