Calling British Indian Ocean Territory from Japan: 010 246 [local number].
Quick answer
To call British Indian Ocean Territory from Japan, dial 010, then 246, then the local number without leading zeros. Example: 010 246 380 1234.
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Dialing format
010 246 380 1234
Exit code • Country code • Local number
Whether you’re calling family, friends, or business contacts, knowing how to call British Indian Ocean Territory 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 British Indian Ocean Territory - whether you’re calling Diego Garcia or anywhere else.
Follow these simple steps to make a call to British Indian Ocean Territory from Japan
Start by dialing 010 (or use + on mobile). This is the international dialing prefix for Japan.
Dial the country code +246 for British Indian Ocean Territory.
Dial the local phone number in British Indian Ocean Territory (typically 8-10 digits, without any leading zeros).
Full format: 010 246 [local number] - For example: 010 246 612 345 678
International Dialing Format
CallTuv Format
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Calling Code
+246
Capital of British Indian Ocean Territory
Diego Garcia
Region
Africa (Eastern Africa)
Currency of British Indian Ocean Territory
United States dollar ($)
British Indian Ocean Territory Time Zones
UTC+06:00
Current time
Your time
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British Indian Ocean Territory
--:--
British Indian Ocean Territory is --
British Indian Ocean Territory, located in Eastern Africa, is a nation with a rich identity. Its capital city, Diego Garcia, serves as the administrative center for a population of approximately unknown.
The official currency is the United States dollar ($). When calling British Indian Ocean Territory, the country code is +246. The country observes the UTC+06:00 time zone(s), and the primary language(s) spoken include English.
Population
N/A
Population Rank
#230 of 230
Language Footprint
English
Time Zone Footprint
UTC+06:00
City/Area Code Coverage
No city-level entries yet
Dial Code Status
Exclusive code in dataset
British Indian Ocean Territory currently has a 7-digit local number pattern in this guide, with country code +246.
Exit Code in Japan
010 (dial 010 (or + from mobile))
Japan Country Code
+81
Route Dialing Pattern
010 246 380 1234
Capital Time Difference
3h destination behind
Best Calling Window (Origin Time)
12:00-21:00
Currency Pair
Japanese yen (¥) -> United States dollar ($)
Primary languages: Japan (Japanese) and British Indian Ocean Territory (English).
Shared language overlap: No direct overlap in primary language list. Primary timezones: Japan (UTC+09:00) and British Indian Ocean Territory (UTC+06:00).
Use this route profile to plan a real call from Japan to British Indian Ocean Territory, including the exit code, destination country code, time difference, and local context.
From
Japan
To
British Indian Ocean Territory
For dialing this route, callers in Japan usually start with 010 or the plus sign, then dial +246 before the local British Indian Ocean Territory number.
Japan's primary timezone in this dataset is UTC+09:00, while British Indian Ocean Territory's is UTC+06:00. A practical origin-time calling window is 12:00-21:00.
Japan callers are represented by JP/JPN, with Tokyo as a capital reference point, Eastern Asia, 123M people, Japanese yen (¥), and primary language context of Japanese.
Origin exit prefix: 010 or + from mobile. Origin country code: +81. Origin time zones: UTC+09:00.
British Indian Ocean Territory is represented here by IO/IOT, Diego Garcia, Eastern Africa, about 0 people, United States dollar ($), and primary language context of English.
Destination calling code: +246. Destination time zones: UTC+06:00. Rate check: check live price before dialing.
This route combines Japan's outbound dialing rules with British Indian Ocean Territory's destination numbering and local schedule. The primary timezone relationship is 3h destination behind, and the recommended origin-time window is 12:00-21:00.
Dialing sequence: 010 246 local number. Business-hour window: 12:00-21:00. Time relationship: 3h destination behind.
Destination market: British Indian Ocean Territory is in Eastern Africa, with Diego Garcia as a main administrative center. Calls from Japan may reach family, companies, banks, hotels, clinics, or public offices across a market of about 0. Primary language context: English. Local billing and everyday prices use United States dollar ($).
Route context: Japan is listed in Eastern Asia with a population of about 123M; British Indian Ocean Territory is listed in Eastern Africa with about 0. The main listed languages differ: Japan (Japanese) and British Indian Ocean Territory (English). Currency context also changes across the route: Japanese yen (¥) in Japan and United States dollar ($) in British Indian Ocean Territory.
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