| 1993–1995 | 1995–1999 | 1990–1993 | 1993–2001 |
| 2001–2006 | 1993–2006 | 2006–2024 | 2024–present |
SPTTelecom (Státní telekomunikační podnik)
1993–1995

| SVG NEEDED |
1995–1999

| SVG NEEDED |
Eurotel
1990–1993

| SVG NEEDED |
Eurotel was founded in 1990 as a joint venture between SPT Telecom, US West (now part of AT&T) and Bell Atlantic (now part of Verizon Communications).
Eurotel Praha
1993–2001

Following the split of Czechoslovakia into the Czech Republic and Slovakia, Eurotel split into Eurotel Bratislava (now Slovak Telekom) and Eurotel Praha. Eurotel Bratislava continued to use the 1990 logo until 2005.
2001–2006

| SVG NEEDED |
Český Telecom
1993–2006

In 2005, Telefónica acquired the fixed-line operator Český Telecom and the mobile operator Eurotel Praha, merging them into one entity in 2006 using the O2 brand.
O2
2006–present
2006–2024
Telefónica agreed to sell the Czech O2 and its subsidiary the Slovak O2 to the Czech investment company PPF Group in 2013, with the O2 brand continuing to be used.
2024–present
See also
- Slovak Telekom (the Slovak offshoot of Eurotel)
| Consumer telecommunications brands Movistar: Argentina (TV) | Chile (TV) | Colombia (Mobile) (TV) | Ecuador | El Salvador | Mexico | Peru (TV) | Spain (Movistar Plus+) | Uruguay | Venezuela Telefónica: Argentina | Chile | Brazil | Peru O2: Germany | Spain | UK | Brand licensees1 Czech Republic and Slovakia
Other brands Television channels Peru: Movistar Deportes | Gol Perú9 | Perú Mágico | Plus TV Life Colombia: Época2 Other assets Former/defunct assets Notes
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