- IP Address Lookup

The IP address location of is Salisbury SP4, England (ENG), United Kingdom (GB). is a public IP address that belongs to ASN 1290 which is under the control of Telstra Europe Ltd. The prefix 146/8 ( 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 PTR / DNS Reverse Lookupeu-smtp-delivery-153.mimecast.com
IP Address ASN1290 controlled by Telstra Europe Ltd
IP ISP / OrganizationPSINet UK Dedicated Hosting
IP Connection TypeCable/DSL [internet speed test]
IP Location ContinentEurope
IP Location CountryUnited Kingdom (GB)
IP Location StateEngland (ENG)
IP Location CitySalisbury
IP Location PostcodeSP4
IP Location Latitude51.1500 / 51°9′0″ N
IP Location Longitude-1.7000 / 1°42′0″ W
IP Location TimezoneEurope/London
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 Prefix146/8
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. 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

  • eu-smtp-delivery-153.mimecast.com 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 Notation146.101.78.153/32
Decimal Notation2456112793
Hexadecimal Notation0x92654e99
Octal Notation022231247231
Binary Notation10010010011001010100111010011001
Dotted-Decimal Notation146.101.78.153
Dotted-Hexadecimal Notation0x92.0x65.0x4e.0x99
Dotted-Octal Notation0222.0145.0116.0231
Dotted-Binary Notation10010010.01100101.01001110.10011001

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