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IP Addresses

IP Address Autonomous System Number (ASN) Internet Service Provider (ISP) / Organization Location AS2497 Internet Initiative Japan Inc. Internet Initiative Japan Japan

Server Locations

Location184-0013 Koganei, Tokyo, Japan (JP)
Latitude35.6914° (35° 41′ 29″ N)
Longitude139.5011° (139° 30′ 3″ E)
Local Time

IP WHOIS Information

IP Address Range203.180.250.0 -
Subnet Size512 IP addresses
CIDR Notation203.180.250.0/23
Date Registered
Date Updated
RegistrantTETRABIT Inc.

IANA IPv4 Address Space Allocation

Allocation Date
StatusALLOCATED - delegated entirely to specific RIR (Regional Internet Registry) as indicated.
  • reserved for TEST-NET-3 [RFC5737]. Complete registration details for are found in [IANA registry iana-ipv4-special-registry].

DNS Resource Records

In this section you will find important DNS resource records for yui-rail.co.jp. SOA records, Name Server records, and MX records are included when available. Additional supporting data includes serial numbers, refresh rates, retry times, TTL, priority, and length to expire will be shown.

Node Name Class Type Data TTL
yui-rail.co.jp IN A

Domain WHOIS Information

This is the yui-rail.co.jp WHOIS information that includes important registration and owner details. Where applicable, you will find registrar info, important dates, name servers, and registration data. Registration data in most cases will include the Name, Organization, Address, City, State or Province, Postal Code, Country, Phone Number, and email address for Registrant, Administrative, and Technical contacts.