​​​​​​This page contains contact information for many areas within the ITU. Paper mail may be addressed to each Bureau at the ITU postal address.
Don't know who to call?  Call the ITU switchboard at +41 22 730 5111

Postal Address

International Telecommunication Union (ITU)
Place des Nations
1211 Geneva 20 Switzerland

General Enquiries

Voice: +41 22 730 5111 (ITU Switchboard)
Fax: +41 22 733 7256
Email: itumail@itu.int
 

Radiocommunication Bureau (BR)

Voice: +41 22 730 5560
Fax: +41 22 730 5785
Email: brmail@itu.int

Telecommunication Standardization Bureau (TSB)

Voice: +41 22 730 5852
Fax: +41 22 730 5853
Email: tsbmail@itu.int

Telecommunication Development Bureau (BDT)

Voice: +41 22 730 5435
Fax: +41 22 730 5484
Email: bdtmail@itu.int
 

Press Office (Media Only)​ 

Voice: +41 22 730 6039
Fax: +41 22 730 5939
Email: pressinfo@itu.int

Languages

Email: languages@itu.int 

ITU Telecom

Voice: +41 22 730 6161
Fax: +41 22 730 6444
Email: telecom@itu.int
 

Publication Sales

Voice: +41 22 730 6141
Fax: + 41 22 730 5194
Email: sales@itu.int
 

Membership Affairs

Fax: +41 22 730 6675 
Email: memberstates@itu.int for Member States
Email: membership@itu.int for Sector Members, Associates & Academia ​ 

Library and Archives

Voice: +41 22 730 6900
Email: library-archives@itu.int​

Information Services

Voice: +41 22 730 5554 (Administration) +41 22 730 6666 (Service Desk)
Fax: +41 22 730 5337
Email: ServiceDesk@itu.int  (TIES Inquiries) webmaster@itu.int  (Web Technical Questions) hostmaster@itu.int  (DNS Questions)

​UN and Liaison Office

ITU is a specialized agency of the United Nations and maintains a liaison office with the UN in New York. Office DC2-2524, 2 United Nations Plaza - New York, NY, 10017
E-mail: wynhoven@un.org, ursula.wynhoven@itu.int
Tel.:  +1 917 214 5584​