Pingpillow
hotel · Chiyoda, JP

Diamond Hotel

Broadband at this address measures 348.1 down / 278.8 up at 7 ms.

Call-ready high confidence · 83 tests within ~248 m

Video calls, screen share, and large pushes all fine at the same time.

01

Can you work here

348.1Mbps down
278.8Mbps up
7ms latency
100Score / 100

Measured on this block in Jul-Sep 2026 — the ceiling the hotel's WiFi sits under. Shared WiFi, captive portals and per-device caps only make it slower, never faster.

02

Fixed line vs mobile

NetworkDownUpPing
Fixed broadband — what the WiFi runs on 348.1278.87
Mobile — your own SIM 168.429.9 —

Do not plan on tethering here. Mobile upload (29.9 Mbps) is far below the fixed line (278.8 Mbps) — if the room WiFi fails, your phone is not a working backup for calls.

03

Measured in the room

Nobody has posted a real speedtest from this hotel yet.

Add a result
04

Outages in Japan

StartedEndedNetworkCause
23 Sep 2026, 00:00 UTC 23 Sep 2026, 11:00 UTC JTCL-JP-ASnetwork problem

Country- and ISP-level outages, not hotel-level. A national outage takes the hotel with it; the hotel's own router failing will never show here.

05

Nearby, ranked

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The Prince Gallery Tokyo Kioicho Call-ready 216.0146.8
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Mash Cafe & Bed Call-ready 295.7257.7