A1 Croatia, officially known as A1 Hrvatska d.o.o., is a telecommunications company operating within Croatia. The company was launched in July 1999 under the name Vipnet and was later rebranded to A1 in 2018. The company was granted the concession for the second GSM network in Croatia in September 1998 and started its commercial operations in July 1999. A1 Croatia is a subsidiary of the A1 Telekom Austria Group. In 2011, the company acquired B.net, the largest Croatian cable operator, marking the biggest takeover within the Croatian telecom market. In 2017, Vipnet and Metronet telecommunications merged, expanding the company's services to business users and increasing its optical infrastructure. The company has consistently introduced new technologies and services in the Croatian market, including the first commercial LTE network in 2012.
Alias
A1 Hrvatska d.o.o.
Country
Croatia
Type
Mobile Network Operator
Ownership
A1 Telekom Group
A1 Telekom Logo

A1 Hrvatska 3G Network

A1 launched 3G UMTS over B1 (2100 MHz) in April 2006, the first operator to do so in Croatia. The company upgraded its 3G service to DC-HSPA+ in December 2010.

Network Frequency Band Status
B1 (2100 MHz)
Active
Date Event Subtype
Launch of 3G Network
Launch

A1 Hrvatska 4G Network

On the same day as competitor T-Hrvatski Telekom, A1 launched its 4G LTE service over B3 (1800 MHz) in March 2012. Following a spectrum auction in October 2012 the company secured a 10 MHz licence in the 800 MHz band, and subsequently launched a second LTE carrier over B20 (800 MHz). LTE-A has been deployed, marketed as 4G+ which involved 2C aggregation of B3 and B20, advertising peak data rates up to 225 Mbps. The network was further enhanced in June 2017 to provide peak DL data rates up to 300 Mbps, which is understood to be using 15+15 MHz 2CC CA.

A1 launched an NB-IoT network in April 2019 as part of its A1 Digital IoT platform. The network leverages the company's existing B20 (800 MHz) LTE carrier.

4G Frequency Bands
Network Frequency Band Max. Channel Bandwidth Status Known EARFCNs
B1 (2100 MHz)
20
Active
500
B3 (1800 MHz)
20
Active
1749
B7 (2600 MHz)
20
Active
3050, 3300
B20 (800 MHz)
20
Active
6225
B28 (700 MHz)
10
Active
9260
Date Event Subtype
Launch of 4G Network
Launch

A1 Hrvatska 5G Network

After being awarded a temporary operating licence by Hrvatske regulatorne agencije za mrežne djelatnosti (HAKOM), A1 Croatia (then Vipnet) demonstrated 5G speeds of 700 Mbps using an n78 (3500 MHz) carrier. The company launched 5G services in August 2021.

Network Frequency Band Status
n78 (3500 MHz)
Active
Date Event Subtype
Launch of 5G Network