🇯🇵 Japan · +81

Japan mobile number prefixes

245 number prefixes and the 5 networks they were assigned to: Softbank, KDDI, NTT Docomo, Okinawa Cellular, Rakuten Communications. Paste a number to see its network.

Prefixes by network

Prefixes are written the way numbers are dialled inside Japan, including the trunk prefix 0. From abroad, drop the 0 and add +81: 090-1234-5678 becomes +81 90-1234-5678.

Softbank

82 prefixes

060100070107025007031070320703307034007034107050107050207050307050407050507050607050707050807050907051070520705307054070550705607058107061070620706300706310706320706330706340706350706360706407065070660706800706810706820706830706840706850706908030804080708091080940809608097090130901709028090290903410903420903909041009042609042709042809042909060090640906509066090807090809090834090835090840908509086009086109086209091090940909650909680909690909809099

KDDI

75 prefixes

0601100601300702070340703507036070370704507046070470705820705830705840705850705860705870705880705890705907060070670707407075070760707707081070820708607087070880805080900809309011090120901809019090200902900902910902930902940903430903440903450903509036090380903980903990904150904160904170904180904190904209061090620906309067090683090685090687090750908040908050908060908080908109083090843090844090920909309096

NTT Docomo

73 prefixes

0601400701007026070270702807029070300703907040707070800708100708110708120801080208076908077080780807900807910807920808080920809508099090100901110901120901409015090160901860901870901880901890901980901990902090300903109032090330903400903460903470903480903490904090509066909067609067709067809067909068090690907090800090801090802090803090841090842090857090858090859090860908709088090890909009095

Okinawa Cellular

9 prefixes

0703808060809809019409037090440906860908209097

Rakuten Communications

6 prefixes

060120070830708407085070890709

Source: Google libphonenumber carrier metadata. Because of number portability, a number may have moved to another network.

Japan mobile prefixes: FAQ

How can I tell which network a Japan number is on?

Look at the first digits after the trunk prefix and compare them with the table on this page, or paste the number into the network finder. For example, Japan numbers starting with 060100 were assigned to Softbank.

Which mobile networks are there in Japan?

Number ranges in Japan are assigned to Softbank, KDDI, NTT Docomo, Okinawa Cellular, Rakuten Communications.

Is the prefix always correct for the current network?

No. Japan numbers can usually be ported to another operator while keeping the number, so the prefix tells you which network the number range was originally assigned to. A carrier lookup through the numlookupapi API returns the carrier the number data points to.

What is the country code of Japan?

The country code of Japan is +81. See the Japan country code page for dialing instructions and number formats.

Phone number API

Get the carrier of any number by API

numlookupapi checks any phone number worldwide in one request and returns validity, line type, carrier, location and every standard format as JSON.

Read the documentation

100 free requests every month. No credit card required.

GET https://api.numlookupapi.com/v1/validate/+819012345678

{
  "valid": true,
  "number": "12069220880",
  "local_format": "2069220880",
  "international_format": "+12069220880",
  "country_prefix": "+1",
  "country_code": "US",
  "country_name": "United States of America",
  "location": "Seattle",
  "line_type": "landline",
  "e164_format": "+12069220880",
  "national_format": "(206) 922-0880"
}