Almanya Federal Network Agency

www.bundesnetzagentur.de
 

Amerika  Federal Communications Commission (FCC)

www.fcc.gov
 

Arjantin  National Communication Comission

www.cnc.gov.ar
 

Belçika  Belgian Institute of Postal Services and Telecommunications (BIPT)

www.bipt.be
 

Brezilya  Anatel

www.anatel.gov.br
 

Danimarka  National Telecom Agency

www.tst.dk
 

Finlandiya  Telecommunications Administration Centre (TAC)

www.ficora.fi
 

Fransa  Telecommunications and Regulation Authority

www.art-telecom.fr
 

Hollanda  Netherland Posts and Telecommunications Authority (OPTA)

www.opta.nl
 

Hong Kong Office of the Telecommunications Authority (OFTA)

www.ofta.gov.hk
 

İngiltere  Office of Telecommunications (OFTEL)

www.ofcom.org.uk
 

Postal Services Commission (Postcomm)

www.postcomm.gov.uk
 

İrlanda  Office of the Director of Telecommunications Regulation (ODTR)

www.odtr.ie
 

İspanya  Spain Telecommunication Commission (CMT)

www.cmt.es
 

İsveç National Post and Telecom Agency (PTS)

www.pts.se

İsviçre Federal Office for Communications

www.admin.ch/bakom
 

İtalya Italian Communications Authority (AGC)

www.agcom.it 

İzlanda Post and Telecom Administration (PTA)

www.pta.is

Japonya Ministry of Posts and Telecommunications

www.mpt.go.jp

Kanada Canadian Radio-Television and Telecommunications Commission (CRTC)

www.crtc.gc.ca

Kore Ministry of Information and Communication (MIC)

www.mic.go.kr

Latviya Telecommunication State Inspection

www.vei.lv

Litvanya Radio Administration

www.rrt.lt
 

Lüksemburg Luxembourg Telecommunications Institute (ILT)

www.etat.lu

Norveç Norwegian Post and Telecommunications Authority (NPT)

www.npt.no

Polonya Ministry of Posts and Telecommunications

www.ml.gov.pl

Portekiz Portugal Communications Institute (ICP)

www.icp.pt

Yunanistan National Telecommunications Commission (EET)

www.eett.gr