- IP Address Lookup

The IP address location of is Castlecrag 2068, New South Wales (NSW), Australia (AU). is a public IP address that belongs to ASN 4804 which is under the control of Microplex PTY LTD. The address resides in the IP address range - (CIDR notation:, and the whole subnet spans a total number of 262,144 individual IP addresses. The prefix 211/8 ( was allocated to APNIC 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 Lookupc211-30-200-197.artrmn3.nsw.optusnet.com.au
IP Address ASN4804 controlled by Microplex PTY LTD
IP ISP / OrganizationOptus
IP Connection TypeCable/DSL [internet speed test]
IP Location ContinentOceania
IP Location CountryAustralia (AU)
IP Location StateNew South Wales (NSW)
IP Location CityCastlecrag
IP Location Postcode2068
IP Location Latitude-33.8000 / 33°47′59″ S
IP Location Longitude151.2167 / 151°13′0″ E
IP Location TimezoneAustralia/Sydney
IP Location Local Time WHOIS IP Lookup

This section provides the IP WHOIS record for IPv4 address which shows who is responsible for the corresponding IP subnet. Use our WHOIS IP Lookup tool to find the IP WHOIS record for any IPv4 or IPv6 address.

IP Address Range211.28.0.0 -
Number of IP Addresses262,144
IP Subnet211.28.0.0/14 [subnet calculator]
IP WHOIS Modification Date
1 Lyonpark Rd.
Macquarie Park, NSW 2113
Australia (AU)

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 Prefix211/8
Regional Internet Registry (RIR)APNIC
Allocation Date
WHOIS Serverwhois.apnic.net
RDAP Serverhttps://rdap.apnic.net/
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

  • c211-30-200-197.artrmn3.nsw.optusnet.com.au 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 Notation3542010053
Hexadecimal Notation0xd31ec8c5
Octal Notation032307544305
Binary Notation11010011000111101100100011000101
Dotted-Decimal Notation211.30.200.197
Dotted-Hexadecimal Notation0xd3.0x1e.0xc8.0xc5
Dotted-Octal Notation0323.036.0310.0305
Dotted-Binary Notation11010011.00011110.11001000.11000101

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