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au, or au by KDDI, is a Japanese mobile phone operator. au is a brand marketed by KDDI in the main islands of Japan and by Okinawa Cellular in Okinawa for their mobile cellular services. au is the second-largest wireless carrier in Japan, with 60.398 million subscribers as of March 2021. [1]
Mobile phones use geographic area codes (two digits): after that, all numbers assigned to mobile service have nine digits, starting with 6, 7, 8 or 9 (example: 55 15 99999–9999). 90 is not possible, because collect calls start with this number. [5] xx 7: xx 8: xx 9: British Indian Ocean Territory +246: 380 7 387 British Virgin Islands +1: 284: 10
This list ranks the countries of the world by the number of mobile phone numbers in use. As an important caveat, this list does not provide the number of mobile phones in use. It is common for each SIM card has a separate phone number, so phones with multiple SIM cards will have multiple phone numbers.
As of March 2023, the penetration rate in Hong Kong was estimated at 282% over a population estimate of over 7.473 million, with 21.61 million public mobile subscriptions. [30] Hong Kong's telecom regulator is the Office of the Communications Authority (OFCA).
insolvency in 1997, mobile phone development and manufacturing business acquired by Telital in 1998 [8] Siemens Mobile: Acquired by BenQ Corporation in 2005 to form BenQ Mobile: Telefunken Italy: Onda Mobile Communication India: YU Televentures: Was a subsidiary of Micromax Indonesia: Nexian Japan: Sanyo: Sansui: Defunct in 2014 Malaysia: M Dot ...
Newzoo's 2018 Global Mobile Market Report shows countries/markets sorted by smartphone penetration (percentage of population). These numbers come from Newzoo's Global Mobile Market Report 2018. [5] By total number of smartphone users, "China by far has the most, boasting 783 million users. India took the #2 spot with 375 million users (less ...
0120 NTT Freedial, toll free services 0130 Automated information services 0140 Disaster relief wireless communications 0160 Disaster relief satellite communications 0170 NTT Dengon Dial, chat line services 0180 NTT Telegong, TV/Radio show feedback dial-in 0180 NTT Teledome, automated information services 0190 NTT Angel Line, automated directory services via PC/modem 0190 NTT Annai Jozu ...
In 1985, NTT offered Japan's first mobile phone service, called the "Shoulder Phone." In 1988, Mobile Communication Group, which later was absorbed into KDDI, started mobile phone service; In 1993, NTT Docomo started its first digital mobile phone service , using a Time division multiple access (TDMA) variant called Personal Digital Cellular.