Has your partner cheated, but you have no clue about the third party who’s causing the damage? Is someone who owes you a large sum of money on the run, and you've lost all contact with them?

In these situations, you can use phone number searches to obtain the information you need and solve the problem. This article outlines 4 ways to search for phone numbers, helping you understand the tips and tricks to quickly locate the person you’ve been thinking about.

When do you need to search for a phone number? What information can you find through a phone search?

Below, we have compiled a list of suitable target groups for phone number searches and the relevant preparatory materials, so that those who wish to locate someone through a phone search can refer to this information first.

• Target Groups for Phone Number Searches:

  • Locating long-lost friends or family members
  • Being harassed by phone calls but not knowing who is behind it
  • A debtor has gone on the run, and you cannot find them to reclaim the owed money or property
  • Investigating a suspected affair involving your partner

• Information Needed Before Conducting a Phone Search:

  • Full name
  • ID number
  • Date of birth

• Information You Can Obtain Through a Phone Search:

  Address, phone number, registered phone numbers, registered mobile numbers, etc. (The specific data required may vary depending on the nature of the investigation; the items listed here are general cases.)

What channels can be used to search for a phone number? Learn about 3 methods for searching phone numbers and addresses.

Method 1 for Searching Phone Numbers and Addresses: Telephone Directory

Most people have probably heard of the thick yellow phone directory. This type of directory is still available for purchase today, including directories for business and consumer numbers, residential numbers, as well as directories for commercial travel and hotels across Taiwan and other regions. You can find various numbers in these directories. For example, if you receive a call from the number 0425XXXXX, you can use the "local phone number directory" to determine that it likely comes from areas like Fengyuan, Tanzi, or Houli in Taichung City.

Below is a compilation of the area codes for various counties and cities in Taiwan for your reference:

In addition, you can also determine the area of the incoming caller based on the landline number: please refer to the "Local Phone Number Directory."

Method 2 for Searching Phone Numbers and Addresses: Chunghwa Yellow Pages Online Phone Directory

The "Chunghwa Yellow Pages Online Phone Directory," released by Chunghwa Telecom in 2007, contains information on the landline users of Chunghwa Telecom, primarily listing the names, addresses, phone numbers, and other details of business and commercial establishments. Basically, any registered business entity can be searched using this method.

Method 3 for Searching Phone Numbers and Addresses: 104 Phone Directory

Also founded by Chunghwa Telecom, the Chunghwa Telecom 104 Online Directory allows you to search for business and commercial phone numbers, addresses, and other details. What’s unique about this method is that it enables you to narrow the search by region and township, speeding up the process of finding the information.

Method 4 for Searching Phone Numbers and Addresses: Detective Agencies

If you want to find a phone number or address, a detective agency is a relatively convenient option. Although it requires an additional fee, it allows you to quickly obtain accurate information, saving time and effort compared to blindly searching on your own. This is especially true for private information, which can only be safely obtained through a detective agency.

What to Keep in Mind When Hiring a Detective Agency to Search for a Phone Number? Reasonable Prices and Reliable Investigators

In the past, whenever a detective agency was established, many related organizations would approach the agency to inquire about or sell personal information. However, since the implementation of the "Personal Data Protection Act," the sale of personal data by such organizations has decreased, which has in turn raised the cost of investigating personal information. As a result, it is normal for legitimate and trustworthy detective agencies to charge higher prices than in the past. If you come across a detective agency offering an unusually low price, it’s important to be cautious, as they may provide false addresses or phone numbers. Even if you fall victim to such a scam, it can be difficult to report it to the police because the investigation of others' personal data is legally untenable.

Additionally, professional detective agencies have investigators operating across various data channels, but maintaining relationships with these entities takes time and effort. This is not something that can be achieved overnight. Therefore, some smaller or newly established detective agencies may not be able to provide such services.

How Much Does It Cost to Search for a Phone Number Through a Detective Agency? A Comprehensive Guide to Service Fees

Detective agencies offer a wide range of services. Here, we have compiled the fee standards, work schedules, and required information for various services, so those who wish to search for a phone number through a detective agency can use this as a reference.

＊ Project Price: Please call for consultation. A specialist will provide customized services and pricing.

Yitong Detective Agency｜Providing You with Safe and Convenient Phone Number and Address Lookup Services

Yitong Detective Agency｜Providing You with Safe and Convenient Phone Number and Address Lookup Services

With 40 years of investigative experience, Yitong Detective Agency utilizes its extensive professional network and skilled investigators to quickly provide the personal information you need. Whether you are searching for a third party who is damaging your relationship, a debtor who has absconded with funds, or long-lost friends and relatives, Yitong Detective Agency offers specialized services to solve your problems. This not only saves you the embarrassment and hassle of investigating on your own but also ensures you get accurate information quickly.

Call us now or contact us via LINE for a consultation, and a specialist will provide you with a detailed quote.