Links
For information about other companies in the Telefónica O2 group, you can access their web sites here.
 | Telefónica, S.A. Company majority shareholder www.telefonica.com www.telefonica.es |
 | Telefónica O2 Europe Plc Subsidiary of Telefónica, S.A., responsible for all O2 operations in Europe www.o2.com www.o2.co.uk |
| Telefónica O2 Slovakia s.r.o. www.sk.o2.com |
 | CenTrade, a.s. Subsidiary providing services in electronic trading www.centrade.cz |
| Telefónica O2 Services, spol. s r.o. Subsidiary providing comprehensive solutions in IT www.cz.o2.com/home/cz/customizedSolutions/ www.itil.cz |
