Support Center


We provide end users with fast, uninterrupted Internet connections around the globe. And the engineers at our NOC provide exceptional customer support and maintenance 24x7x365. No call centers. No messages taken. You’re assured the quality routing of your data and the support of our engineers.

Definitions for maintenance

REGULAR – using the respective window below, with at least 5 days (120 hours) notice.

URGENT – using the respective window below, with at least 1 day (24 hours) but less than 5 days notice.

EMERGENCY/ASAP –  as soon as possible after a notice is sent, if possible. In rare circumstances, it may be required that a notification follows the work.

Maintenance windows

Maintenance windows are generally between 02:00 – 05:00 local time, with exceptions, noted below.

Large scale maintenances occasionally require maintenance windows exceeding 3 hours – this information will be included in the maintenance notification.

Type Location Universal Time
sydnau_DT Sydney (daylight savings) 16:00 – 19:00 UTC
sydnau_ST Sydney (standard) 17:00 – 20:00 UTC
osakjp_ext Osaka (extended window) 17:00 – 22:00 UTC
tokyjp_ext Tokyo (extended window) 17:00 – 22:00 UTC
osakjp Osaka 18:00 – 21:00 UTC
sngpsi Singapore 18:00 – 21:00 UTC
tokyjp Tokyo 18:00 – 21:00 UTC
kslrml Kuala Lumpur 19:00 – 22:00 UTC
seolko Seoul 20:00 – 23:00 UTC
taiptw Taipei 20:00 – 23:00 UTC
bngkkt Bangkok 21:00 – 00:00 UTC
chwahk Chai Wan 21:00 – 00:00 UTC
jktajk Jakarta 21:00 – 00:00 UTC
newthk New Territories 21:00 – 00:00 UTC
tkokhk Tseung Kwan 21:00 – 00:00 UTC

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NTT | Global IP Network
NTT is a global leader in all Internet-related businesses. Our Tier 1 Global IP Network, consistently ranked among the top networks worldwide, spans the Americas, Europe, Asia and Oceania, providing the best possible environment for content, data and video transport through a single autonomous system number (AS2914).