Living in Japan

Japan Internet Setup: Fiber, Mobile and WiFi for Residents

By JAPN Published

Japan Internet Setup: Fiber, Mobile and WiFi for Residents

Home Internet Options

Fiber optic internet (hikari) from NTT Flet’s Hikari, au Hikari, NURO Hikari, and SoftBank Hikari provides speeds of 1 to 2 Gbps for monthly costs of 4,000 to 5,500 yen after installation. Installation requires scheduling an appointment two to four weeks ahead, during which a technician runs fiber cable into the apartment and installs a router. An ISP (internet service provider) contract with companies like OCN, So-net, or BIGLOBE is required in addition to the line contract, though bundled packages simplify this.

Mobile and Temporary Solutions

SoftBank Air and WiMAX provide wireless home internet without installation, using a plug-in router that receives mobile network signals. Speeds of 50 to 200 Mbps suit most uses though heavy gaming and large file downloads may lag behind fiber. These solutions work well for shorter stays since they avoid the installation wait and sometimes the installation fee of 15,000 to 30,000 yen that fiber requires. Tethering from your mobile phone provides emergency backup when home internet fails.

Home Internet Setup

Home fiber-optic internet through NTT Flet’s Hikari, NURO Hikari (Sony), or au Hikari costs 4,000 to 5,000 yen monthly and provides speeds of 1 Gbps, among the fastest residential internet globally. Installation requires scheduling a technician visit two to four weeks ahead, and the technician drills a small hole for the fiber cable if no existing connection point exists (landlord permission required). Some apartments come with internet included (intaanetto-tsuki) or pre-wired (hikari taiou) requiring only a router. Pocket WiFi alternatives from WiMAX, Rakuten, and Docomo provide immediate connectivity without installation at 3,000 to 5,000 yen monthly with slightly lower speeds and data caps. For the first weeks after moving before home internet is installed, pocket WiFi or the abundant free WiFi at convenience stores, cafes, and public facilities bridges the gap. Major ISPs offer English-language customer support through designated lines.

For the initial weeks before home internet installation, pocket WiFi from WiMAX or Rakuten provides immediate connectivity at 3,000 to 5,000 yen monthly. Some apartment buildings include internet in the rent (intaanetto-tsuki), eliminating the setup process entirely. Shared houses and guesthouses aimed at foreigners almost always include WiFi. The convenience store WiFi network provides emergency connectivity, with 7-Eleven and FamilyMart offering free access after a simple one-time registration. Public library WiFi is available in most municipalities. Cell phone data plans from carriers like Rakuten Mobile at 2,980 yen monthly for unlimited data provide a viable primary internet option for light home users.

Home Internet Options

Hikari (fiber optic) internet provides the fastest and most reliable home connection, with NTT Flet’s Hikari and au Hikari as the two major infrastructure providers. Monthly costs run 4,000 to 6,000 yen for speeds of 1 Gbps download. Installation requires scheduling a technician visit (typically two to four weeks wait) and often an installation fee of 15,000 to 30,000 yen, though many providers waive this fee during promotional periods.

For residents who move frequently or want to avoid installation hassles, pocket WiFi devices (mobairu ruutaa) from WiMAX, Rakuten Mobile, and other providers offer unlimited or high-cap data at 3,000 to 5,000 yen monthly with no installation required. SoftBank Air provides a plug-in home router using the cellular network that requires no construction work and starts at roughly 5,000 yen monthly. These wireless alternatives sacrifice some speed and stability compared to fiber but eliminate the need for wall ports, installation appointments, and landlord permission for wiring. For short-term residents of six months or less, pocket WiFi with a short-term contract (tanki keiyaku) or rental plan provides the most flexible option, avoiding the two-year contracts and early termination fees (9,500 to 20,000 yen) common with fiber providers.

This content is for informational purposes only and reflects independent research. Details may change — verify current information before making travel plans.