- IP Address Lookup

The IP address location of is Chicago 60607, Illinois (IL), United States (US). is a public IP address that belongs to ASN 32748 which is under the control of Steadfast. The prefix 050/8 ( was allocated 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 Lookupip21.50-31-117.static.steadfastdns.net
IP Address ASN32748 controlled by Steadfast
IP ISP / OrganizationSteadfast
IP Connection TypeCorporate [internet speed test]
IP Location ContinentNorth America
IP Location CountryUnited States (US)
IP Location StateIllinois (IL)
IP Location CityChicago
IP Location Postcode60607
IP Location Latitude41.8745 / 41°52′28″ N
IP Location Longitude-87.6503 / 87°39′1″ W
IP Location TimezoneAmerica/Chicago
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 Prefix050/8
Regional Internet Registry (RIR)ARIN
Allocation Date
WHOIS Serverwhois.arin.net
RDAP Serverhttps://rdap.arin.net/registry, http://rdap.arin.net/registry
Delegated entirely to specific RIR (Regional Internet Registry) as indicated. 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

  • ip21.50-31-117.static.steadfastdns.net 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 Notation50.31.117.21/32
Decimal Notation840922389
Hexadecimal Notation0x321f7515
Octal Notation06207672425
Binary Notation 110010000111110111010100010101
Dotted-Decimal Notation50.31.117.21
Dotted-Hexadecimal Notation0x32.0x1f.0x75.0x15
Dotted-Octal Notation062.037.0165.025
Dotted-Binary Notation00110010.00011111.01110101.00010101

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