The telephone number starting with 057 1 is usually dialed from Hangzhou, Zhejiang. If it is in the form of 057 1 +8 digits, it is likely to come from a fixed telephone, but it is not 100% sure. It may also be the special service number, VoIP, fax number of the telecom operator or even a device that can set its own display number.
The area code 057 1 includes Shangcheng District, Xiacheng District, Jianggan District, Gongshu District, Xihu District, Binjiang District, Xiaoshan District, Yuhang District, Tonglu County, Chun 'an County, jiande city, Fuyang City and Lin 'an City.
What should I do if I encounter harassing calls?
1. If harassing calls come in frequently, you can find them on your mobile phone and refuse to answer them. Set your harassing phone number in the list of rejected calls, so that harassing calls cannot come in.
2. Set up the incoming call firewall. Today's smart phones can download a mobile phone call firewall. There is a blacklist in the arson wall with the same meaning as the call rejection above, or the answering mode is set on the firewall to only accept business cards, so that strange numbers other than business cards cannot be dialed in.
There is a most direct way to deal with annoying harassing phone calls. If your phone is free, you can just press the answer button and put the phone aside, wasting the phone bill for harassing calls.