A detailed call log is a document that records the incoming and outgoing calls of an individual, managed by the mobile service provider. You can easily request your provider to supply your call log. However, gathering the call log for someone else, such as a family member or a spouse you suspect of infidelity, can be more challenging. Take some time to understand how to legally obtain your own call log as well as others (if possible).
Steps
Collecting Your Call Log

Check your bill. If you receive a monthly bill, it may include a detailed call and text message log for the current billing cycle.
- If you don’t urgently need this document but might require it in the future, store it safely and securely.
- The detailed log will provide basic information such as the date, time of the call, call duration, and in some cases, special features activated during the call (e.g., call recording).

Check your call detail statement online. Most telecom companies allow users to access the same information available in monthly transaction bills through their online platforms, but you must log in to your account to view it.
- If you haven't done so yet, register an account on the mobile service provider's website. You may need to create a unique username (some providers allow users to use their phone number or email address) and a password. The process will be quicker if you have your account details ready to enter.
- Once logged in, look for options such as "Call Details" or "Call Detail Statement." If these options are not visible on the current screen, check for headings that contain the word "Usage." However, keep in mind that some providers only show outgoing calls. If you need a full call detail statement that includes incoming calls (which are often free), it may not be available in the usage records.

Contact your mobile service provider. If you lose the call detail statement you received or cannot access it online, the best option is to reach out to the provider. Legally, telecom companies are required to store records and provide them to anyone who can prove they are the account holder.
- Customer service will need to verify your account, so be prepared to provide personal information like your account number, phone number, current address, and possibly the last four digits of your national ID or identity card.
- Since the provider has already sent you this information in your monthly service details, they may charge a fee for issuing the statement again.

Sign up for anonymous caller ID service. If you are being harassed by robocalls or an individual but the incoming number appears as "unknown" or "unidentified," the caller is hiding their ID. The actual number will not show up on most call detail statements. In this case, contact your telecom provider and request them to reveal the anonymous caller ID for your phone number. The incoming calls will no longer display as "unknown" on your call detail statement, and the responsible party may be identified.
Collect call detail statements of others

You need to understand the legal limitations. It is not easy to collect the call detail statement of someone else (even if it's your spouse) if their account is not linked to your name. If you somehow obtain the call details without the account holder's consent, the document will not be accepted as evidence in court.

Check the call detail statement in your received bill. If you're being harassed or suspect someone sharing your plan has made inappropriate calls, this will be reflected in the call detail statement accompanying your phone bill.
- Typically, the call detail statement you receive will be divided into outgoing and incoming calls. In some cases, these calls may be mixed together, but the total number of calls will still be categorized accordingly.

Check the call detail statement online. As mentioned, most telecom companies offer a complete call detail statement, including both outgoing and incoming calls for all plan members. Whether you're identifying a stalker or monitoring a spouse/child, the call detail statement from the telecom provider will be useful.
- You may need to create an online account to access the call detail statement on the provider's website.
- After logging in, look for options such as "Call Details" or "Call Detail Statement."

Contact your mobile service provider. Request a copy of your call detail statement if it is lost. Legally, telecom companies are required to retain records and provide them to anyone who can prove they are the account holder.
- Customer service will need to verify your account, so be prepared to provide personal information such as your account number, phone number, current address, and possibly the last four digits of your national ID or identity card.

Obtain records via a subpoena. You can obtain the call detail statement of a cheating spouse during litigation with a court subpoena. This is a legal way to collect records for your lawyer to use as evidence in a case.
- You can only request the call detail statement from the provider as part of legal proceedings, meaning it must be part of a lawsuit or divorce. The subpoena is typically approved by a judge, though this depends on the legal process.
- Instead of a subpoena, you can purchase the call detail statement through a data broker. These brokers often run businesses with legal issues (depending on the methods they use to collect data), and the documents they provide are generally not accepted in court.
Warning
- Data brokers often use unorthodox methods to gather and sell call detail records, including tactics like "pretexting." They may contact the mobile service provider's customer service and impersonate the account holder whose call details they are attempting to obtain.
