158.203.31.145 🇯🇵

The public IP address 158.203.31.145 is located in Japan. It is assigned to the ISP National Institute of Informatics. The address belongs to ASN 2907 which is delegated to Research Organization of Information and Systems, National Institute of Informatics.
Please have a look at the tables below for full details about 158.203.31.145, or use the IP Lookup tool to find the approximate IP location for any public IP address.

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158.203.31.145 IP Address Location

Reverse IP (PTR)geodb.bosai.go.jp
ASN2907 (Research Organization of Information and Systems, National Institute of Informatics)
ISP / OrganizationNational Institute of Informatics
IP Connection TypeCable/DSL [internet speed test]
IP LocationJapan
IP ContinentAsia
IP Country🇯🇵 Japan (JP)
IP Staten/a
IP Cityunknown
IP Postcodeunknown
IP Latitude35.6897 / 35°41′22″ N
IP Longitude139.6895 / 139°41′22″ E
IP TimezoneAsia/Tokyo
IP Local Time

IANA IPv4 Address Space Allocation for Subnet 158.0.0.0/8

IPv4 Address Space Prefix158/8
Regional Internet Registry (RIR)Administered by ARIN
Allocation Date
WHOIS Serverwhois.arin.net
RDAP Serverhttps://rdap.arin.net/registry, http://rdap.arin.net/registry
StatusLEGACY
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.

158.203.31.145 IP Address Representations

CIDR Notation158.203.31.145/32
Decimal Notation2664112017
Hexadecimal Notation0x9ecb1f91
Octal Notation023662617621
Binary Notation10011110110010110001111110010001
Dotted-Decimal Notation158.203.31.145
Dotted-Hexadecimal Notation0x9e.0xcb.0x1f.0x91
Dotted-Octal Notation0236.0313.037.0221
Dotted-Binary Notation10011110.11001011.00011111.10010001