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Ranked
| Hotel | # | Verdict | Down | Up | Ping | Tests |
|---|---|---|---|---|---|---|
| Watukaka Resort - Sumba Island | 1 | Call-ready | 107.2 | 75.5 | 6 | 548 |
| Cap Karoso | 2 | Workable | 59.6 | 50.2 | 17 | 11 |
| Sumba Nautil Resort | 3 | Workable | 93.0 | 29.2 | 42 | 37 |
| Belkom Backpacker & Laundry | 4 | Workable | 93.0 | 29.2 | 42 | 37 |
| Tarung Wisata Hotel | 5 | Workable | 93.0 | 29.2 | 42 | 37 |
| Hotel Ronita | 6 | Workable | 78.9 | 26.6 | 39 | 47 |
| SVD Tambolaka | 7 | Workable | 58.3 | 23.9 | 26 | 27 |
| Hotel Pasola | 8 | Workable | 58.9 | 20.4 | 30 | 22 |
| Melati Penginapan | 9 | Workable | 46.9 | 18.9 | 29 | 30 |
| HOTEL SINAR TAMBOLAKA | 10 | Workable | 47.6 | 19.5 | 32 | 31 |
| Hotel Ella | 11 | Workable | 47.6 | 19.5 | 32 | 31 |
| Vila Sinar Tambolaka | 12 | Workable | 47.6 | 19.5 | 32 | 31 |
| Sumba Sejahtera | 13 | Workable | 47.6 | 19.5 | 32 | 31 |
| Newa Sumba Resort | 14 | Workable | 47.6 | 19.5 | 32 | 31 |
| Penginapan Mahardika | 15 | Workable | 47.6 | 19.5 | 32 | 31 |
| Oro-Beach (Pantai Oro) | 16 | Workable | 46.9 | 18.9 | 29 | 30 |
| Kost israel | 17 | Workable | 46.2 | 17.9 | 32 | 24 |
| Renata Homestay | 18 | Workable | 40.4 | 18.4 | 27 | 11 |
| Alamayah | 19 | Workable | 58.9 | 11.9 | 44 | 17 |
| NIHI | 20 | Risky | 15.8 | 17.4 | 22 | 7 |
| Lelewatu Resort Sumba | 21 | Risky | 29.3 | 10.7 | 24 | 3 |
| Iman’s House | 22 | Risky | 29.4 | 5.0 | 43 | 3 |
| Sima Hotel Sumba | 23 | Tethering territory | 8.4 | 5.4 | 28 | 7 |
| Oro Beach Sumba | 24 | Tethering territory | 14.0 | 6.2 | 62 | 2 |
| Maringi Sumba Hotel | 25 | Tethering territory | 3.7 | 2.7 | 55 | 1 |
Upload is emphasised because it decides whether your video call holds, and it is the column no hotel will tell you.