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 - August 2017
| Rank | ISP | Speed Mbps | Previous Mbps | Rank Change | Type | |
|---|---|---|---|---|---|---|
| 1 | au Hikari (KDDI) | 4.29 | 4.34 | No change |
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| 2 | UCOM | 3.69 | 3.84 | No change |
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| 3 | eo Hikari (K-Opticom) | 3.65 | 3.81 | No change |
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| 4 | IIJ | 3.44 | 3.50 | +2 |
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| 5 | J:COM | 3.44 | 3.64 | -1 |
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| 6 | Asahi Net | 3.37 | 3.49 | +3 |
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| 7 | Tokai Communications | 3.36 | 3.52 | -2 |
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| 8 | iTSCOM | 3.35 | 3.50 | -1 |
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| 9 | VECTANT | 3.35 | 3.38 | +4 |
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| 10 | BIGLOBE | 3.34 | 3.48 | No change |
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| 11 | OCN (NTT Com) | 3.34 | 3.44 | No change |
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| 12 | Softbank - Fiber | 3.30 | 3.49 | -4 |
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| 13 | So-net | 3.25 | 3.28 | +1 |
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| 14 | NIFTY | 3.21 | 3.40 | -2 |
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| 15 | Freebit | 2.80 | 2.72 | +2 |
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| 16 | NTTPC InfoSphere | 2.73 | 2.81 | No change |
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| 17 | Softbank - DSL | 2.72 | 2.82 | -2 |
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| 18 | KDDI Cable/DSL/Wireless | 2.53 | 2.68 | No change |
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