Japan Dialing Codes: +81, Area Codes, and How to Call

The booking email prints the hotel as 03-3456-7890. You add +81, keep the 03, and the line never rings. Japan's country code is +81; that first zero is a domestic trunk prefix, not a digit the rest of the world is supposed to dial.

A leftover 0 is why so many first calls from the United States, Britain or Australia die in silence. From a landline you also need your own exit code — 011 in the US and Canada, 00 in the UK — before 81. Once the zero is gone, Tokyo's 03 is just a 3.

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How to call Japan from abroad

On a mobile, hold 0 for the plus sign, then dial +81 and the Japanese number without the leading zero. From a US or Canadian landline the sequence is 011 81 plus the same remainder. Britain and much of Europe use 00 81; Australia uses 0011 81.

A Tokyo landline printed as 03-1234-5678 becomes 011 81 3 1234 5678 from the US, or +81 3 1234 5678 from a phone that accepts plus. Osaka 06 becomes +81 6. Kyoto 075 becomes +81 75. Area codes run from two to five digits; a full domestic landline is usually ten digits once you count the zero.

Tokyo 03-1234-5678 from the US: 011 81 3 1234 5678. Drop the 0. Keep the 3.

Inside the same city, a landline can skip the area code. From a Japanese mobile, or from another prefecture, you always dial the full number — zero included. The “drop the zero” rule starts only when +81 or your country's exit code is already in front. Keep both and you are dialing a number that does not exist.

Area codes for major cities

The bigger the city, the shorter the code: Tokyo is 03, a mountain onsen town may take five digits. The table sticks to places travelers and offices actually call. If you are hunting one of the cities in Japan worth visiting, the short numbers below will get you there.

City	Area code	From abroad
Sapporo	011	+81 11
Hakodate	0138	+81 138
Sendai	022	+81 22
Aomori	017	+81 17
Akita	018	+81 18
Tokyo	03	+81 3
Yokohama	045	+81 45
Kawasaki	044	+81 44
Chiba	043	+81 43
Saitama	048	+81 48
Narita	0476	+81 476
Hakone	0460	+81 460
Nikko	0288	+81 288
Nagoya	052	+81 52
Kanazawa	076	+81 76
Niigata	025	+81 25
Shizuoka	054	+81 54
Matsumoto	0263	+81 263
Takayama	0577	+81 577
Osaka	06	+81 6
Kyoto	075	+81 75
Kobe	078	+81 78
Nara	0742	+81 742
Himeji	079	+81 79
Hiroshima	082	+81 82
Okayama	086	+81 86
Matsuyama	089	+81 89
Takamatsu	087	+81 87
Kochi	088	+81 88
Fukuoka	092	+81 92
Nagasaki	095	+81 95
Kumamoto	096	+81 96
Kagoshima	099	+81 99
Beppu	0977	+81 977
Naha / Okinawa	098	+81 98

Two corrections that still sit in older lists: Akita is 018, not 096 — 096 belongs to Kumamoto. Himeji is written 079 today, Kochi 088. Codes also refuse to follow prefecture lines in a tidy way: Kawasaki (044) and Yokohama (045) both sit in Kanagawa and still keep separate networks.

Mobiles, 050, and the 0120 that dies at the border

Japanese mobile numbers start with 070, 080 or 090 and run to eleven digits. From abroad, 090-1234-5678 becomes +81 90 1234 5678. The leading zero drops; the 90, 80 or 70 stays. How people actually live with the handset is a different story — that sits in our guide to cell phones in Japan.

Numbers beginning 050 are IP phones. They look like a landline and live on a data network. 0120 is NTT's Free Dial range: hotels, railways and city offices print it on flyers. From outside Japan the call does not go through — the connection stops at the border. If a booking only shows a 0120, you need the geographic number or an email.

Calling abroad from Japan

From Japan you start with 010, then the country code, then the number without its leading zero. The United States and Canada are 1, the UK 44, Australia 61, Brazil 55. A New York number 212 becomes 010 1 212 …. On a mobile the plus often does the same job: +1 212 …

Direct 010 works from almost any line and is rarely the cheapest route. Prepaid international cards sit at airports and convenience stores; a lot of travelers just open a messenger app. The old carrier prefixes 001, 0033 or 0061 are not something you need to memorize as long as 010 opens the path. Public phones marked for international calls still turn up in stations, airports and some hotels — 10-yen and 100-yen coins, and a 100-yen piece will not give change.

Emergency numbers: 911 is not the one

Fingers trained on 911 or 112 will hit the wrong keys in Japan. Police answer 110. Fire and ambulance share 119. The Japan Coast Guard is 118. All three are free, including from a public phone. Some mobiles bounce 911 or 112 toward 110, but you should still dial 110 or 119 yourself — 119 is medical and fire, not the police.

110 police · 119 fire and ambulance · 118 maritime — not 911, not 112, not 190.

After an earthquake or typhoon, 171 is the voice board where families leave short messages. Several cities also run #7119 for medical questions that do not need an ambulance. The sirens behind those calls are a separate system; that story lives in our piece on J-Alert.

Short codes that still live on a Japanese line

Two numbers belong to the Japanese landline the way a speaking clock once belonged to everyone else: 117 tells the time, 177 reads the weather for your area code. Both sound old-fashioned and both still work. When the other person picks up, the greeting is moshi moshi — and why that phrase stuck has its own article on moshi moshi.

The area code is not a souvenir you look up once. +81 opens the country, the zero decides whether the call connects, and 110 instead of 911 is the one number worth keeping in your head before the Shinkansen drops your signal.