My IP: - IP Address Lookup

The IP address location of is Tsukuba 305-0815, Ibaraki, Japan (JP). is a public IP address that belongs to ASN 37917 which is under the control of University of Tsukuba. The prefix 130/8 ( was delegated for administration to ARIN by the Internet Assigned Numbers Authority (IANA) in . IP Address Location

Here you will find the approximate IP geolocation for as reported by our IP Tracker along with additional information like ASN mapping, ISP, and the type of internet connection. Use the free IP Lookup tool to find the IP geolocation for any public IP address.

IP Address ASN37917 (University of Tsukuba)
IP ISP / OrganizationUniversity of Tsukuba
IP Connection TypeCable/DSL [internet speed test]
IP Location ContinentAsia
IP Location CountryJapan (JP)
IP Location StateIbaraki
IP Location CityTsukuba
IP Location Postcode305-0815
IP Location Latitude36.0833 / 36°4′59″ N
IP Location Longitude140.1167 / 140°7′0″ E
IP Location TimezoneAsia/Tokyo
IP Location Local Time

IANA IPv4 Address Space Allocation for Subnet

The Internet Assigned Numbers Authority (IANA) is responsible for global IP address space allocation to Regional Internet Registries (RIRs). The available IPv4 address space is typically allocated to RIRs as /8 prefix blocks, and the RIRs delegate smaller blocks of their address pools to Local Internet Registries (LIRs) like Internet Service Providers and other organizations in their designated locations.

IPv4 Address Space Prefix130/8
Regional Internet Registry (RIR)Administered by ARIN
Allocation Date
RDAP Server,
Allocated by the central Internet Registry (IR) prior to the Regional Internet Registries (RIRs). This address space is now administered by individual RIRs as noted, including maintenance of WHOIS Directory and reverse DNS records. Assignments from these blocks are distributed globally on a regional basis. Reverse IP Lookup

Reverse IP address lookup is the process of mapping an IP address to its corresponding hostnames. Below you will find a list of hostnames that resolve to IP address


Find all Reverse IP Hosts for IP Address Representations

An IPv4 address is defined as a 32-bit number, and thus it can be written in any notation that is capable of representing a 32-bit integer value. If human-readability is a requirement, IPv4 addresses are most often expressed in quad-dotted decimal notation with 4 octets ranging from 0 to 255 each.
Note: You should avoid IP addresses with zero-padded decimal octets like or because they might impose an ambiguity with octal numbers.
Below you can find some ways to express an IPv4 address.

CIDR Notation130.158.6.82/32
Decimal Notation2191394386
Hexadecimal Notation0x829e0652
Octal Notation020247403122
Binary Notation10000010100111100000011001010010
Dotted-Decimal Notation130.158.6.82
Dotted-Hexadecimal Notation0x82.0x9e.0x06.0x52
Dotted-Octal Notation0202.0236.06.0122
Dotted-Binary Notation10000010.10011110.00000110.01010010

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