Telephone numbers in the Czech Republic

Following the break-up of Czechoslovakia in 1993, the successor states, the Czech Republic and Slovakia, 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:

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)
Other Emergency Numbers:
 * General emergency: 112
 * Ambulance: 155
 * Police: 158
 * Fire brigade: 150
 * Municipal police: 156
 * Mountain rescue service: 1210
 * Urgent gas leak: 1239
 * Emergency Road Service (ABA): 1240
 * Emergency Road Service (ÚAMK): 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) 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.

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 (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 – O2 Czech Republic (GSM system)
 * 603 – T-Mobile (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

Institutional networks
These prefixes belong to the following networks:
 * 9522 – Všeobecná zdravotní pojišťovna, government-controlled health insurance company
 * 9555 – Bank "Komerční banka (KB)", a part of the Société Générale (SG) international group, formerly government-controlled company
 * 9567 – Bank "Česká spořitelna (ČS)", a part of the Erste Bank Group, formerly government-controlled company
 * 972 – Czech Railways and Railway Administration
 * 973 – Ministry of Defence & Armed Forces of the Czech Republic
 * 974 – Ministry of the Interior

Special pricing

 * 800 – Zelená linka ("Green line") – toll-free (800 00 – Home Country Direct)
 * 844 (also 81, 83, 843, 845, 846, 855) – Modrá linka (Blue line) – local call tariff from all Czech landlines
 * 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)