ATIS Welcomes You
to the 3GPP TSG Meetings
ATIS is proud to host the 2025 3GPP TSG Meetings in Baltimore, MD — where the leading experts in the information and communications telecommunications industry convene to shape the industry’s future.
The 2025 3GPP TSG Meetings will cover a wide range of topics, including SA (Service and System Aspects), CT (Core Network and Terminals), and RAN (Radio Access Network) — some of the most crucial areas in the ongoing development and standardization of mobile communication technologies.
The Baltimore Marriott Waterfront, located in the Harbor East neighborhood, will provide a comfortable and productivity-enhancing environment for this work. All attendees are encouraged to register today to seize this opportunity to collaborate with peers and contribute to the development of critical industry standards.
ATIS is committed to driving the transformation of the telecommunications industry through innovative technology solutions that are revolutionizing the way we communicate. As the industry evolves, our collaborative global standards-development efforts with other 3GPP OPs becomes even more critical. As the North American 3GPP Organizational Partner, ATIS is proud to host the 2025 3GPP meetings. We look forward to seeing you in Baltimore.
Meeting Information
Meeting venue:
The Meetings will be held at the Baltimore Marriott Waterfront, 700 Aliceanna Street, Baltimore, MD, USA 21202. The negotiated room rate is $195 + 17.5% tax for single and double occupancy. The cut-off date for reservations is November 14, 2025, or until the block is sold out.
Staying at the meeting hotel is highly encouraged as it defrays meeting room rental costs. Book reservations online using the link below.
https://book.passkey.com/go/ATIS3GPPTSGPlenaryMeetings
U.S. Government rate: https://book.passkey.com/go/ATIS3GPPTSGPlenaryMeetingsGovt
3GPP Meeting Registration :
In addition to making your hotel reservation, delegates must also register to attend the meeting on the 3GPP online portal at https://portal.3gpp.org.
Air Travel Discounts Available:
United Airlines:
ATIS is pleased to partner with United Airlines to offer discounted airfare for meeting attendees.
- Book online: To make flight reservations online please click on discount code ZRA9411333. MileagePlus members earn valuable miles for their travel when using the Meetings discount code.
- You may also call United Meetings Reservation Desk Monday – Friday at (800) 426-1122 for booking assistance. Booking fees are waived for Meeting reservations.
- International: Contact your local United Airlines Reservation Desk.
Delta Air Lines:
Delta Air Lines is pleased to offer special discounts for ATIS
- Book online: Please click here to book your flights.
- You may also call Conferences and Events® at 1.800.328.1111* Monday–Friday, 8:00 a.m. – 6:30 p.m. (EST) and refer to Meeting Event Code NM4RB
*Please note there is not a service fee for reservations booked and ticketed via our reservation 800 number.
Visa Invitation Letter Request:
If a visa invitation letter is required for your travel to Baltimore, please complete the following online form:
https://www.atis.org/international-partnerships/3gpp/baltimore-2025-visa-letter-request/
After you enter your personal information, the completed form will be automatically processed. Signed letters will be returned via email. The invitation letter cannot be completed without including your hotel information and confirmation number. Letters may take up to 14 working days to be processed. Please note, after November 7, 2025, hard copies of the invitation letter will not be physically sent. They will only be sent via email.
If you have not received your letter within 14 working days, or if you have any changes or questions after receiving your emailed letter, please contact: Jo Seibel at visas@atis.org.
See important information about the U.S. visa application process.
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