How to Call Japan Phone Numbers

Country phone codes

+81 is the country calling code assigned to Japan by the International Telecommunication Union. All of the country’s telephone numbers are also designated under the Telecommunication Business Act of 1984 created by the Ministry of Internal Affairs and Communications of the Japanese Government.

So if you’re calling Japan, the number should start with:

+81 12-345-6789

Check Lebara’s rate for Japan

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Other Important Information about Japan

Prefix

A prefix is simply the set of numbers that come before the country and area codes of a telephone number. Japan’s telephone numbers are made up of 11-13 numbers split into groups of 3. So if you’re going to make a call to Japan using a mobile phone, you should dial country code+area code+4-8-digit number. Some of the common area codes in Japan include Osaka (6), Kyoto (75) and Nara (742).

Location	Country Code	Landline Area Code	Landline Number
Osaka	+81	(6)	1234 5678
Kyoto	+81	(75)	1234 5678
Nara	+81	(742)	1234 5678

So if you’re making a call to Osaka, dial +81 6 1234 5678.

Network coverage

Network coverage is readily available across Japan.

4G coverage

4G connection is readily available across the country, but quality highly depends on the mobile operator.

International Roaming

Available at over 50 destinations, you can count on us to keep you connected even when you’re not in home soil.
We know how difficult it can be to be far from home and the family for a long time. We can only wish to talk to them non-stop day and night. But we also know that the more we spend time with calls and texts overseas, the bigger the expenses can get. Read more

Top Mobile SIM network in Japan

Here are the top mobile SIM networks in Japan:

au by KDDI

NTT DoCoMo

Rakuten Mobile

Top Apps Used to Communicate

Here are the top apps mostly used for communication in Japan:

Line

Instagram

Emergency phone numbers

Here are the 4 most important emergency numbers to take note of when visiting Japan:

119 for fire, ambulance services

171 for earthquake assistance

110 for police

7119 for the national emergency number.

Best Time to Call Japan

Japan observes Japan Standard Time (JST) using the time offset of UTC+9.
Wherever you are in Australia, you can call Japan from the following time zones:

Best time to call	Time to Call	UTC Relative	Time Zone	State
Japan	10:00am-10:00pm	UTC+10:00	Australian Eastern Standard Time (AEST)	Queensland
	8:00am-8:00pm	UTC+08:00	Australian Western Standard Time (AWST)	Western Australia
	9:30am-9:30pm	UTC+09:30	Australian Central Standard Time (ACST)	South Australia, Northern Territory and town of Broken Hill in Western New South Wales
	11:00am-11:00pm	UTC+11:00	Norfolk Island Standard Time (NFT)	Norfolk Island
	7:00am-7:00pm	UTC+07:00	Christmas Island Standard Time (CXT)	Christmas Island
	7:30am-6:30pm	UTC+06:30	Cocos (Keeling) Islands Standard Time (CCT)	Cocos (Keeling) Islands

Daylight Savings Time (first Sunday in October – first Sunday in April)

Best time to call	Time to Call	UTC Relative	Time Zone	State
Japan	11:00am- 11:00pm	UTC+11:00	Australian Eastern Daylight Time (AEDT)	New South Wales (except Broken Hill), Victoria, Tasmania, Australian Capital Territory
	10:00am – 1:00pm	UTC+10:00	Australian Eastern Standard Time (AEST)	Queensland
	8:00am – 8:00pm	UTC+08:00	Australian Western Standard Time (AWST)	Western Australia
	11:30am – 11:30pm	UTC+10:30	Australian Central Daylight Time (ACDT)	South Australia, Northern Territory and town of Broken Hill in Western New South Wales
	10:30am – 10:30pm	UTC+09:30	Australian Central Standard Time (ACST)	Northern Territory
	12:00pm – 12:00am	UTC+12:00	Norfolk Island Daylight Time (NDT)	Norfolk Island
	7:00am – 7:00pm	UTC+07:00	Christmas Island Standard Time (CXT)	Christmas Island
	7:30am – 6:30pm	UTC+06:30	Cocos (Keeling) Islands Standard Time (CCT)	Cocos (Keeling) Islands