FREE WEBINAR SERIES

Carrier Files 101: Working with AT&T, T-Mobile, and Verizon Call Detail Records

Date: April 22-24, 2025 | 1:00 - 1:45 PM EDT

Location: Online via GoToWebinar

Cost: Free

Gain unparalleled insights into call detail records (CDRs) and geolocation data from the nation's top three telecom carriers: AT&T, T-Mobile, and Verizon. 

Led by Darryl Valinchus, a seasoned expert with over 30 years in law enforcement, each session will spotlight one specific carrier, breaking down their unique data formats, response files, and records interpretation. This series will deepen your understanding and sharpen your skills required for effective CDR analysis.

Series Schedule:

• AT&T: Tuesday, April 22 - 1:00-1:45 PM ET
• T-Mobile: Wednesday, April 23 - 1:00-1:45 PM ET
• Verizon: Thursday, April 24 - 1:00-1:45 PM ET

Attendees can register for the full series or individual sessions.

Each Session Covers:

• Explanation Documents
• Subscriber Information
• Cell Site Data Files
• Call Detail Records (CDRs)
• SMS & MMS Response Data
• Tower Dumps
• Real Time Location Information
• Warrant Wording

Ready to sharpen your CDR analysis skills across all major US carriers?

Register Now: https://go.penlink.com/l/652333/2025-03-19/31pdvp

• http://go.penlink.com/l/652333/2025-03-19/31pdvp