My IP: - IP Address Lookup

The IP address location of is Cambridge 02139, Massachusetts (MA), United States (US). is a public IP address that belongs to ASN 3 which is under the control of Massachusetts Institute of Technology. The prefix 128/8 ( 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
IP Address ASN3 (Massachusetts Institute of Technology)
IP ISP / OrganizationMassachusetts Institute of Technology
IP Connection TypeCable/DSL [internet speed test]
IP Location ContinentNorth America
IP Location CountryUnited States (US)
IP Location StateMassachusetts (MA)
IP Location CityCambridge
IP Location Postcode02139
IP Location Latitude42.3646 / 42°21′52″ N
IP Location Longitude-71.1028 / 71°6′10″ W
IP Location TimezoneAmerica/New_York
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 Prefix128/8
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 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 Notation128.30.52.21/32
Decimal Notation2149463061
Hexadecimal Notation0x801e3415
Octal Notation020007432025
Binary Notation10000000000111100011010000010101
Dotted-Decimal Notation128.30.52.21
Dotted-Hexadecimal Notation0x80.0x1e.0x34.0x15
Dotted-Octal Notation0200.036.064.025
Dotted-Binary Notation10000000.00011110.00110100.00010101

Recommended Articles Based on Your Search


Share What You Found