Japan
The Netflix ISP Speed Index is a measure of prime time Netflix performance on particular ISPs (internet service providers) around the globe, and not a measure of overall performance for other services/data that may travel across the specific ISP network.
ISP Leaderboard - July 2018
| Rank | ISP | Speed Mbps | Previous Mbps | Rank Change | Type | |
|---|---|---|---|---|---|---|
| 1 | au Hikari (KDDI) | 3.98 | 3.97 | No change |
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| 2 | Softbank - Fiber | 3.73 | 3.63 | No change |
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| 3 | UCOM | 3.50 | 3.49 | No change |
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| 4 | eo Hikari (K-Opticom) | 3.46 | 3.39 | No change |
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| 5 | Tokai Communications | 3.35 | 3.28 | No change |
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| 6 | So-net | 3.31 | 3.22 | +1 |
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| 7 | IIJ | 3.28 | 3.23 | -1 |
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| 8 | OCN (NTT Com) | 3.27 | 3.22 | No change |
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| 9 | iTSCOM | 3.24 | 3.16 | +1 |
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| 10 | J:COM | 3.22 | 3.16 | -1 |
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| 11 | Asahi Net | 3.20 | 3.13 | No change |
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| 12 | VECTANT | 3.18 | 3.12 | No change |
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| 13 | BIGLOBE | 3.15 | 3.07 | No change |
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| 14 | NIFTY | 2.73 | 2.62 | No change |
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| 15 | KDDI Cable/DSL/Wireless | 2.53 | 2.49 | No change |
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| 16 | NTTPC InfoSphere | 2.45 | 2.44 | No change |
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| 17 | Freebit | 2.25 | 2.32 | No change |
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| 18 | Softbank - DSL | 2.01 | 2.01 | No change |
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