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IP data

IP address171.67.215.200
Reverse DNS hostname
OrganizationStanford University

IP Geolocation

Geolocation resultsIP2Location LITEDB-IP LiteMaxMind GeoLite2
ContinentNorth AmericaNorth America
CountryUnited StatesUnited StatesUnited States
Postal code94305
Coordinates37.4213, -122.163937.4295, -122.178037.7510, -97.8220

IP whois

Network Range171.64.0.0 -
OrganizationStanford University
Address241 Panama Street, Pine Hall, room 125, Stanford, California, 94305-4102, United States
Registered22 Aug 1994 (27 years and 2 months ago)
Updated13 Oct 2008 (13 years ago)
Technical contactRoberts, Rosalea, +1-650-723-3352, email
Abuse contactAbuse Reporting, +1-650-723-3352, email
Technical contactTingley, Stephen, +1-650-725-3790, email

Autonomous System

Registered24 Sep 1984 (37 years and 1 month ago)
Updated13 Oct 2008 (13 years ago)
OrganizationStanford University, 241 Panama Street, Pine Hall, room 125, Stanford, California, 94305-4102, United States
Abuse contactAbuse Reporting, +1-650-723-3352, email
Technical contactTingley, Stephen, +1-650-725-3790, email
Technical contactRoberts, Rosalea, +1-650-723-3352, email


BGP prefix   whois
Prefix registryARIN
Prefix countryUnited States
Allocation date1994-08-22 (27 years and 2 months ago)

Websites on this IP (406)

IP formats

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Useful resources

What is IP Address Lookup?

IP Address Lookup is a free online tool that reports detailed information about an IP address, including reverse DNS hostname, organization, ASN and IP whois. It supports both IPv4 and IPv6 address types.

It is also able to find the geolocation of an IP address and show its location on the map. Geolocation includes continent, country, region and city as well as the geographical coordinates (latitude and longitude).

The tool also represents the IP address in different formats: as IPv4, in decimal format and as compressed IPv6.

How it is different from others?

Read about the benefits of our tool here: 7 Reasons Why You Should Choose Our IP Address Lookup Tool.

What is Reverse DNS?

Reverse DNS lookup or reverse DNS resolution (rDNS) is the querying technique of the Domain Name System (DNS) to determine the domain name associated with an IP address. The Reverse DNS Hostname is resolved by querying the DNS server for a pointer (PTR) record. Often used in anti-spam filters.

What is IP Geolocation?

IP-based geolocation is the process of identifying the geographical location of an internet-connected device by its IP address. For better accuracy, we use several IP geolocation databases (IP2Location LITE, DB-IP Lite and MaxMind GeoLite2) and choose the most appropriate result.

What is an IP whois?

WHOIS is a public directory where you can look up "who is" responsible for a domain or IP address. The IP address whois response shows which organization is holding which IP address blocks and their details.

What is an Autonomous System (AS)?

Autonomous System (AS) is a large network or multiple networks with a single routing policy. Basically, it is a collection of IP routing prefixes that allow Internet connected systems to communicate with each other.

What is an ASN?

In order for multiple autonomous systems to interact, each needs to have a unique identifier. An autonomous system number (ASN) is such a unique number used to identify a network on the Internet. AS numbers are assigned in blocks by Internet Assigned Numbers Authority (IANA). As of December 2020, the number of allocated ASNs exceeded 99,000.

What is a BGP prefix?

A BGP prefix is a network address written in CIDR notation (IP address followed by a slash and the bit-length of the subnet mask, for example:, which is advertised via Border Gateway protocol (BGP) and is associated with specific BGP attributes including origin, AS-Path and other information. The primary function of BGP protocol is to exchange routing and reachability information among autonomous systems (AS) on the Internet.

What is a NOC?

NOC stands for Network Operations Center and it is one or more locations from which technicians perform network monitoring or network management tasks.

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