One (Telekom Slovenija Group)

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One Operator d.o.o.

Company type	Public
Industry	Wireless Services; Telecommunication
Founded	2003 as Cosmofon
Defunct	2015
Fate	Merger with Vip operator
Successor	one.Vip
Headquarters	Skopje, Macedonia
Key people	Olliver Poncin (CEO) Dejan Kalinikov (COO) Lea Benedejcic (CCO)
Products	Mobile networks, Telecom services, etc.
Owner	Telekom Slovenije
Website	Official site

One was a Macedonian GSM/UMTS mobile operator. The company was under a 100-per-cent ownership of Telekom Slovenije. The network of One was covering 99,9% of the population and 98,17% of the territory of Macedonia with quality signal.

One has launched the first DVB-T in Macedonia, BoomTV.

One used to host its network at an mobile virtual network operator called Albafone. It started operations in 2013 and ceased operations in 2015.

In 2015, One merged with Vip operator into one mobile network operator - one.Vip, under the name Vip, with Telekom Austria (Vip) having an equity interest of 55% and Telekom Slovenije (One) having an equity interest of 45%. The agreement includes options for the exit of the Telekom Slovenije Group within three years of the transaction's closing date.

In November 2017 sold to Telekom Austria.