Calling Czech Republic from Japan: 010 420 [local number].
Quick answer
To call Czech Republic from Japan, dial 010, then 420, then the local number without leading zeros. Example: 010 420 601 123 456.
Plan before you dial with the international call cost calculator and the best time to call planner. Looking for a calling card alternative instead of the dialing instructions? Compare calling cards to Czech Republic.
Dialing format
010 420 601 123 456
Exit code • Country code • Local number
Whether you’re calling family, friends, or business contacts, knowing how to call Czech Republic correctly helps your conversation start smoothly. This guide covers the essential dialing steps, including country and area codes that are easy to miss. By the end, you’ll be ready to connect confidently with anyone in Czech Republic - whether you’re calling Prague or anywhere else.
Follow these simple steps to make a call to Czech Republic from Japan
Start by dialing 010 (or use + on mobile). This is the international dialing prefix for Japan.
Dial the country code +420 for Czech Republic.
Dial the local phone number in Czech Republic (typically 8-10 digits, without any leading zeros).
Full format: 010 420 [local number] - For example: 010 420 612 345 678
International Dialing Format
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Calling Code
+420
Capital of Czech Republic
Prague
Region
Europe (Central Europe)
Currency of Czech Republic
Czech koruna (Kč)
Czech Republic Time Zones
UTC+01:00
Current time
Your time
--:--
Czech Republic
--:--
Czech Republic is --
Czech Republic, located in Central Europe, is a nation with a rich identity. Its capital city, Prague, serves as the administrative center for a population of approximately 11M.
The official currency is the Czech koruna (Kč). When calling Czech Republic, the country code is +420. The country observes the UTC+01:00 time zone(s), and the primary language(s) spoken include Czech, Slovak.
Population
11M
Population Rank
#84 of 230
Language Footprint
Czech, Slovak
Time Zone Footprint
UTC+01:00
City/Area Code Coverage
22 locations listed
Dial Code Status
Exclusive code in dataset
Czech Republic currently has a 9-digit local number pattern in this guide, with country code +420.
Exit Code in Japan
010 (dial 010 (or + from mobile))
Japan Country Code
+81
Route Dialing Pattern
010 420 601 123 456
Capital Time Difference
8h destination behind
Best Calling Window (Origin Time)
17:00-23:59 and 00:00-02:00
Currency Pair
Japanese yen (¥) -> Czech koruna (Kč)
Primary languages: Japan (Japanese) and Czech Republic (Czech, Slovak).
Shared language overlap: No direct overlap in primary language list. Primary timezones: Japan (UTC+09:00) and Czech Republic (UTC+01:00).
Use this route profile to plan a real call from Japan to Czech Republic, including the exit code, destination country code, time difference, and local context.
From
Japan
To
Czech Republic
For dialing this route, callers in Japan usually start with 010 or the plus sign, then dial +420 before the local Czech Republic number.
Japan's primary timezone in this dataset is UTC+09:00, while Czech Republic's is UTC+01:00. A practical origin-time calling window is 17:00-23:59 or 00:00-02:00.
Japan callers are represented by JP/JPN, with Tokyo as a capital reference point, Eastern Asia, 123M people, Japanese yen (¥), and primary language context of Japanese.
Origin exit prefix: 010 or + from mobile. Origin country code: +81. Origin time zones: UTC+09:00.
Czech Republic is represented here by CZ/CZE, Prague, Central Europe, about 11M people, Czech koruna (Kč), and primary language context of Czech, Slovak.
Destination calling code: +420. Destination time zones: UTC+01:00. Rate check: check live price before dialing.
This route combines Japan's outbound dialing rules with Czech Republic's destination numbering and local schedule. The primary timezone relationship is 8h destination behind, and the recommended origin-time window is 17:00-23:59 or 00:00-02:00.
Dialing sequence: 010 420 local number. Business-hour window: 17:00-23:59 or 00:00-02:00. Time relationship: 8h destination behind.
Destination market: Czech Republic is in Central Europe, with Prague as a main administrative center. Calls from Japan may reach family, companies, banks, hotels, clinics, or public offices across a market of about 11M. Primary language context: Czech, Slovak. Local billing and everyday prices use Czech koruna (Kč).
Route context: Japan is listed in Eastern Asia with a population of about 123M; Czech Republic is listed in Central Europe with about 11M. The main listed languages differ: Japan (Japanese) and Czech Republic (Czech, Slovak). Currency context also changes across the route: Japanese yen (¥) in Japan and Czech koruna (Kč) in Czech Republic.
| City / Region | Area Code | Full Dialing Pattern |
|---|---|---|
| Brno | 420-54 | +420-54 [local number] |
| Plzen | 420-377 | +420-377 [local number] |
| Praha (Prague) | 420-3 | +420-3 [local number] |
| Region Jihocesky | 420-38 | +420-38 [local number] |
| Region Jihocesky | 420-39 | +420-39 [local number] |
| Region Jihomoravsky | 420-51 | +420-51 [local number] |
| Region Jihomoravsky | 420-53 | +420-53 [local number] |
| Region Jihomoravsky | 420-54 | +420-54 [local number] |
| Region Karlovarsky | 420-35 | +420-35 [local number] |
| Region Kralovehradecky | 420-49 | +420-49 [local number] |
| Region Liberecky | 420-48 | +420-48 [local number] |
| Region Moravskoslezsky | 420-55 | +420-55 [local number] |
| Region Moravskoslezsky | 420-59 | +420-59 [local number] |
| Region Olomoucky | 420-58 | +420-58 [local number] |
| Region Pardubicky | 420-46 | +420-46 [local number] |
| Region Plzensky | 420-37 | +420-37 [local number] |
| Region Stredocesky | 420-31 | +420-31 [local number] |
| Region Stredocesky | 420-32 | +420-32 [local number] |
| Region Ustecky | 420-41 | +420-41 [local number] |
| Region Ustecky | 420-47 | +420-47 [local number] |
| Region Vysocina | 420-56 | +420-56 [local number] |
| Region Zlinsky | 420-57 | +420-57 [local number] |
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