Croatia uses the GSM 900/1800 system for mobile phones. There are three providers, T-Mobile, Vip (also operates the Tomato prepaid brand) and Tele2. Over 98% of the country's area is covered. Since 2006 UMTS (3G) is available as well. If you have an unlocked phone, you can buy a Tele2 prepaid SIM card for 25 kn (3.42 euro). GSM phones (Nokia 1200, Nokia 2610, Motorola F3, LG KG130 or Samsung C170) bundled with T-Mobile or Vip prepaid SIM cards can be found in post offices, Konzum grocery stores and kiosks at prices between 200 and 300 kn (27-41 euro).
Alternative to use of mobile phone are Calling Cards which can be found in postal offices and Kiosks, There are two providers Dencall and Hitme. you can buy cards from 25 kn (3.42 euro)
Area Codes: When calling between cities you must dial specific city area codes: (area code)+(phone number)
Zagreb (01) Split (021) Rijeka (051) Dubrovnik (020) Sibenik/Knin (022) Zadar (023) Osijek (031) Vukovar (032) Varazdin (042) Bjelovar (043) Sisak (044) Karlovac (047) Koprivnica (048) Krapina (049) Istria (052) Lika/Senj (053)
ADSL is common in Croatia. A 4 Mbit connection with unlimited downloads costs 178 kn (24 euro) per month via T-Com and just 99 kn with some other providers like Metronet or Iskon.
Internet cafés are available in all major cities. They are relatively cheap and reliable. A free Wi-Fi signal can be found virtually in every city (cafés, hotels, private unsecured networks...)
Croatia's media operate in a climate of relative freedom. The constitution bans censorship and guarantees press freedom. Croatian Radio-Television, HRT, is a national state-owned public broadcaster and is financed by a mixture of advertising and licence-fee revenues. The frequencies of HRT's third national TV network were allocated to a private bidder in 2003. Public TV is the main source of news and information. National commercial networks and dozens of private local TV stations compete for viewers.