Following the break-up of Czechoslovakia in 1993, the successor states, the

Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The ...

and

Slovakia Slovakia (; sk, Slovensko ), officially the Slovak Republic ( sk, Slovenská republika, links=no ), is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the ...

, continued to share the 42 country code until 28 February 1997, with the Czech Republic then adopting 420 and Slovakia adopting 421. On September 22, 2002, the Czech Republic adopted a closed numbering plan, with nine-digit numbers used for local and national calls, and the dropping of the trunk code 0. Before the change, the following arrangements would have been made for calls to

Brno Brno ( , ; german: Brünn ) is a city in the South Moravian Region of the Czech Republic. Located at the confluence of the Svitava and Svratka rivers, Brno has about 380,000 inhabitants, making it the second-largest city in the Czech Republic ...

: Local call: xx xx xx xx National call: 05/xx xx xx xx International call: +420 5 xx xx xx xx After the change, the dialing arrangements for calls to Brno were as follows: Within Czech Republic: 5xx xxx xxx Outside Czech Republic: +420 5xx xxx xxx In the case of mobile numbers, which had to be dialed in full, the only change was that the 0 was no longer used: Within Czech Republic: 602 xxx xxx Outside Czech Republic: +420 602 xxx xxx

Emergency calls (always toll-free)

* General emergency: 112 * Ambulance: 155 * Police: 158 * Fire brigade: 150 * Municipal police: 156 Other Emergency Numbers: * Urgent gas leak: 1239 * Emergency Road Service (ABA): 1240 * Emergency Road Service (UAMK): 1230

Services Numbers

O2 offers several over-the-phone information services for a fee. Note that many of the services are offered only in Czech: * Info Line (Czech Number Directory): 1180 * Info Line (Foreign Number Directory): 1181 * Operator for changed numbers (re-numbering): 141 11 * Information on air quality: 141 10 * Exact time: 141 12 * Weather: 141 16 * Medical Information: 141 20 * Operator for international phone calls: 133 003

Prefixes

The first 1-3 digits (after +420) of the telephone number indicates location or network. For mobile phones, since there is number portability, the mobile phone code only indicates the original operator. For example, when a person calls a number starting with 73 (

T-Mobile T-Mobile is the brand name used by some of the mobile communications subsidiaries of the German telecommunications company Deutsche Telekom AG in the Czech Republic ( T-Mobile Czech Republic), Poland ( T-Mobile Polska), the United States (T-Mobil ...

) but had been ported to another operator, a short voice message in Czech and English is played stating "you are calling out of a T-Mobile network" before the ringing tone. It is possible to disable this voice message.

Geographical

Mobile networks

601 xxx xxx 602 xxx xxx 603 xxx xxx 604 xxx xxx 605 xxx xxx 606 xxx xxx 607 xxx xxx 608 xxx xxx 702 xxx xxx 703 xxx xxx 704 xxx xxx 705 xxx xxx 72x xxx xxx 730 xxx xxx 731 xxx xxx 732 xxx xxx 733 xxx xxx 734 xxx xxx 735 xxx xxx 736 xxx xxx 737 xxx xxx 738 xxx xxx 739 xxx xxx 770 xxx xxx 771 xxx xxx 772 xxx xxx 773 xxx xxx 774 xxx xxx 775 xxx xxx 776 xxx xxx 778 xxx xxx 779 xxx xxx 790 xxx xxx 791 xxx xxx 792 xxx xxx 793 xxx xxx 794 xxx xxx 797 xxx xxx 799 xxx xxx *601 -

O2 Czech Republic O2 Czech Republic (operating under the O2 brand) is a major integrated operator in the Czech Republic. It is now operating more than six million lines, both fixed and mobile, making it one of the Czech Republic’s leading providers of fully co ...

(formerly NMT, numbers were ported to GSM in 2006; also used as part of the PPP log-in when dialling in the CDMA network) (formerly named EuroTel) *602 -

(GSM system) *603 -

(formerly named Paegas/RadioMobil) *604 - T-Mobile *605 - T-Mobile *606 - O2 Czech Republic *607 - O2 Czech Republic *608 - Vodafone Czech Republic (formerly named Oskar) *70 - (formerly Bleskmobil's range) *72 - O2 Czech Republic *73 - T-Mobile *77 - Vodafone Czech Republic *790 - U:Fon (Mobilkom) *910 - VoIP non-geographic networks

Non-geographic networks

910 -

VoIP Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. The terms Internet t ...

Institutional networks

These prefixes belong to the following networks: *9522 - Všeobecná zdravotní pojišťovna, government-controlled health insurance company *9555 - Bank "

Komerční banka Komerční banka (“KB”) is a major Czech bank and the parent company of KB Group, a member of the Société Générale international financial group. KB is a universal bank providing a wide range of services in retail, corporate and investme ...

(KB)", a part of the

Société Générale Société Générale S.A. (), colloquially known in English as SocGen (), is a French-based multinational financial services company founded in 1864, registered in downtown Paris and headquartered nearby in La Défense. Société Générale ...

(SG) international group, formerly government-controlled company *9567 - Bank "

Česká spořitelna Česká spořitelna is the biggest Czech bank measured by the number of clients (4.7 million) Česká spořitelna, Konsolidované výsledky za rok 2016 (neauditované, IFRS), 28. února 2017 with its headquarters in Vienna. It is a part of the Er ...

(ČS)", a part of the

Erste Bank Group Erste Group Bank AG (Erste Group) is an Austrian financial service provider in Central and Eastern Europe serving 15.7 million clients in over 2,700 branches in seven countries. History Erste Group was founded in October 1819 as ''Erste österr ...

, formerly government-controlled company *972 - Czech Railways and Railway Administration *973 -

Ministry of Defence {{unsourced, date=February 2021 A ministry of defence or defense (see spelling differences), also known as a department of defence or defense, is an often-used name for the part of a government responsible for matters of defence, found in state ...

Armed Forces of the Czech Republic The Armed Forces of the Czech Republic ( cs, Ozbrojené síly České republiky) are the military forces of the Czech Republic. They consist of the Army of the Czech Republic ( cs, Armáda České republiky), the Military Office of the Presiden ...

*974 -

Ministry of the Interior An interior ministry (sometimes called a ministry of internal affairs or ministry of home affairs) is a government department that is responsible for internal affairs. Lists of current ministries of internal affairs Named "ministry" * Ministr ...

Special pricing

*800 - ''Zelená linka'' ("Green line") -

toll-free A toll-free telephone number or freephone number is a telephone number that is billed for all arriving calls. For the calling party, a call to a toll-free number from a landline is free of charge. A toll-free number is identified by a dialing pref ...

(800 00 -

Home Country Direct Home Country Direct is a telecommunications service to facilitate calling one's home country while traveling abroad. It made it possible to speak with an operator familiar with the language of the traveler. The Home Country Direct number is usuall ...

) *844 (also 81, 83, 843, 845, 846, 855) - ''Modrá linka'' (Blue line) - local call tariff from all Czech

landline A landline (land line, land-line, main line, home phone, fixed-line, and wireline) is a telephone connection that uses metal wires or optical fiber telephone line for transmission, as distinguished from a mobile cellular network, which us ...

s *840 (also 841, 842, 847, 848, 849) - ''Bílá linka'' (White line) - national call tariff from all Czech landlines *90 - premium tariff *971 - dial-up internet access *976 xx - premium-priced dial-up internet access (priced at CZK xx per minute)

References

117/2007 Vyhláška o číslovacích plánech sítí a služeb elektronických komunikací
{{Telephone numbers in Europe

Czech Republic communications-related lists Telecommunications in the Czech Republic