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InternetData
IPv4 address

183.181.82.163

An address in Tokyo, Japan, used by XServer Networks Inc., announced by XServer Cloud Inc. (AS131965). It's hosting space of XServer, a mail server on port 587, and a web server on ports 80 and 443.

Summary

Ownership
183.181.80.0/22
Used by XServer Networks Inc.
  • HostingXServer

No mobile carrier, anycast or CDN

  • SMTPPort 587
  • WebPorts 80, 443

Geolocation

Where the address is, and what that place uses.

City
Tokyo
Region
Tokyo
Postal code
100-0001
Country
Japan
Continent
Asia
Timezone
Asia/Tokyo

Ownership

Who holds the address: the AS announcing it, the registry record, the abuse contact and its name in DNS.

Company
XServer Networks Inc.
Domain
xserver.co.jp
Type
Hosting
Registered in
Japan
AS number
AS131965
Name
XServer Cloud Inc.
Prefix
183.181.80.0/22
RPKI
Valid
Type
Hosting
Domain
xserver.co.jp
Registered in
Japan
Name
XServer Networks Inc.
Network name
XSERVER
Registry
JPNIC
Domain
xserver.jp
Name
XServer Networks Inc.
Address
GRAND FRONT OSAKA TOWER A 32F, 4-20, Ofuka-cho, Kita-ku, Osaka-shi, Osaka 530-0011, Japan
Network
183.181.82.0-183.181.82.255
Not seen inIP RWHOISIP RDNS

Anonymity

Whether the address hides someone else: a VPN, Tor, a relay, a proxy pool, or a hosting range.

Provider
XServer
Confidence
High
Last seen
2026-10-29

Network

What kind of network it is on: a mobile carrier, a satellite operator, an anycast service, a CDN edge.

Services

What our own internet-wide measurement found listening on it.

Port
587
Banner
220 sv10245.xserver.jp ESMTP Postfix
Greeting
Completed
First seen
2026-07-28
Last seen
2026-10-16
80 status
200
80 server
nginx
80 title
無効なURLです
80 seen
2026-07-27 to 2026-10-24
443 status
200
443 server
nginx
443 title
無効なURLです
443 TLS
TLSv1.3
443 certificate
*.xserver.jp
443 issuer
C=JP, O=CloudSecure Corporation, CN=CloudSecure RSA Domain Validation Secure Server CA 3
443 browser-trusted
Yes
443 seen
2026-07-27 to 2026-10-23
00 · Evaluate

Test the real build first.

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01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.