The number 0769-2 193 1620 shows PHS Huaxia wind (that is, prepaid PHS, which belongs to the agent's batch number and has no real name registration), and the customer information is basically empty! So you can tell the landlord: be careful to sail for ten thousand years. Don't believe these figures. This is not a landline, it's a PHS! What I checked is basically consistent with the electrical signal 10000!
I hope I can help the landlord