- IP Address Lookup

The IP address location of is Utrecht 3514, Provincie Utrecht (UT), Netherlands (NL). is a public IP address that belongs to ASN 1103 which is under the control of SURFnet bv. The prefix 131/8 ( 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 ASN1103 controlled by SURFnet bv
IP ISP / OrganizationRijksinstituut voor Volksgezondheid en Milieuhygie
IP Connection TypeCable/DSL [internet speed test]
IP Location ContinentEurope
IP Location CountryNetherlands (NL)
IP Location StateProvincie Utrecht (UT)
IP Location CityUtrecht
IP Location Postcode3514
IP Location Latitude52.0996 / 52°5′58″ N
IP Location Longitude5.1203 / 5°7′13″ E
IP Location TimezoneEurope/Amsterdam
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 Prefix131/8
Regional Internet Registry (RIR)Administered by ARIN
Allocation Date
WHOIS Serverwhois.arin.net
RDAP Serverhttps://rdap.arin.net/registry, http://rdap.arin.net/registry
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. 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.

Decimal Notation2212559688
Hexadecimal Notation0x83e0fb48
Octal Notation020370175510
Binary Notation10000011111000001111101101001000
Dotted-Decimal Notation131.224.251.72
Dotted-Hexadecimal Notation0x83.0xe0.0xfb.0x48
Dotted-Octal Notation0203.0340.0373.0110
Dotted-Binary Notation10000011.11100000.11111011.01001000

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