The mansion owner's phone number likely originated from a public or private directory, a social media platform, or a personal contact list. This information could have been obtained through various means, such as a search engine query, a direct request from the owner, or through a third-party service.

In the United States, phone numbers are often listed in public directories, which can be accessed by anyone. These directories include both landline and mobile numbers, and they are typically maintained by local or national telephone companies. Additionally, social media platforms like Facebook, LinkedIn, and Twitter often list users' contact information, which can be easily searched and accessed by the public. Furthermore, personal contact lists, either digital or physical, can be a source of someone's phone number, especially if the owner has shared it with friends, family, or business associates.

Data from the Federal Communications Commission (FCC) indicates that approximately 92% of American households have a landline phone, and an even higher percentage, around 98%, have a mobile phone. This widespread use of telecommunication services makes it highly likely that a mansion owner's phone number would be listed in a public directory or shared through social media. According to a study by the Pew Research Center, 72% of Americans use social media, which further supports the likelihood of finding a phone number through these platforms.

Moreover, the ease of access to personal information has been increasing due to advancements in technology and the internet. With the rise of data breaches and privacy concerns, it is crucial for individuals to be cautious about sharing their contact information online. However, despite these precautions, phone numbers can still be obtained through various legitimate and sometimes less legitimate means.