GeoIP Release Notes

August 17, 2017
On October 31, 2017, we will discontinue our legacy GeoIP JavaScript services, which use the endpoints http://js.maxmind.com/js/country.js and http://js.maxmind.com/js/geoip.js. Please upgrade your legacy GeoIP integration to use our GeoIP2 JavaScript Client API before that date.

July 24, 2017
We will be mapping additional mobile (cellular) networks to a region (subdivision) rather than city level. This change will only occur where the confidence in the city data is low due to the mobile provider allocating IPs over a wide area.

July 10, 2017
The geographical location for anycast CloudFlare networks: 104.16.0.0/12, 162.159.0.0/16, 190.93.244.0/22, 198.41.192.0/19 have been removed.

June 23, 2017
Our Account Portal has been updated to include the ability for our customers to create and manage multiple license keys.

June 11, 2017
We are removing the geographical location for the anycast CloudFlare network 141.101.112.0/20. Anycast networks can be routed to a number of different locations all around the world, typically based on what is the nearest location. Over the next few weeks, we may remove the geographical location for additional anycast networks, including more CloudFlare networks as well as Google public DNS servers 8.8.8.8 and 8.8.4.4.
May 9, 2017
Our GeoLite2 ASN database is now provided in a CSV format suitable for importing into a SQL database as well as a GeoLite2 ASN database in our MaxMind DB binary format. You can download the database here.

GeoLite2 databases may also be downloaded and updated with our GeoIP Update program.
May 8, 2017
We’ve updated the ISP and Organization data to replace the Charter Communications and Bright House Networks data points with the data point Spectrum, as these two ISPs have merged and been rebranded as Spectrum.
March 5, 2017

The GeoIP databases and services providing ISP and Organization data have been updated. The change is to a number of European and Latin Americans ISPs. We’ve updated the ISP name to use the common trade name instead of the legal name. This will make it easier to recognize the ISP.

Please note that if you use this data point, for example, to flag a visitor if they change ISP, you may need to adjust your implementation in order to avoid false positive flags.

The ISP name changes include the following:

  • Proximus Skynet to Skynet Belgium
  • Telefonica Germany to O2 Deutschland
  • Telefonica Movil De Chile S.A. to Movistar Movil Chile
  • Tele Danmark to TDC Danmark
November 8, 2016

We’ve updated any GeoIP database or service providing ISP and Organization data to return Comcast Business rather than Comcast Business Communications. We are doing so in order to use the trade name of the ISP and also because it is shorter.

Please note that if you use this data point, for example, to flag a visitor if they change ISP, you may need to adjust your implementation in order to avoid false positive or negative flags.

The following GeoIP databases and services are affected by this change:

  • GeoIP2 ISP database
  • GeoIP2 Enterprise database (Update will apply to November 15th release)
  • GeoIP Legacy ISP and Organization databases
  • GeoIP2 Precision and Legacy City Service
  • GeoIP2 Precision and Legacy Insights Service
September 15, 2016
The GeoIP City databases now provide significantly improved accuracy for countries outside the US, especially China, India, and Japan. See more information about GeoIP accuracy on https://www.maxmind.com/en/geoip2-city-database-accuracy
April 11, 2016
We are changing the latitude and longitude for two locations in our GeoIP and GeoLite databases. For IPs in the United States that we are unable to locate to a particular state or city, we will return 37.751, -97.822. For IPs that resolve to Ashburn, Virginia with zip code 20147, we will return 39.018, -77.539. We would like to remind customers that latitude and longitude values contained in the GeoIP databases are not precise and should not be used to identify a particular address or household.
February 26, 2016
We are updating the GeoIP ISP and Organization databases to return Verizon Fios instead of Verizon FiOS, due to a change in how Verizon capitalizes Fios. If you reference Verizon FiOS in code or a custom rule, note that you may need to revise these references to Verizon Fios.
August 10, 2015
We are updating the GeoIP ISP and Organization databases today to return AT&T Internet Services instead of BellSouth.net, due to a merger with AT&T. We are renaming Bouygues Telecom Division Mobile to Bouygues Mobile. There is also a bug fix to return Frontier Communications instead of AT&T Wireless for Frontier customers in Connecticut.
January 27, 2015
We are working on improving the accuracy in Crimea.

Approximately 60% of website visitors who are from Crimea are currently located by GeoIP as being in Crimea. We plan to increase this to 75% in the next couple of months.

Approximately 95% of the visitors who are located in Crimea by GeoIP are actually in Crimea.

We currently locate Crimea in Ukraine, as we use GeoNames data and they locate Crimea in Ukraine. If GeoNames locates Crimea in Russia in the future, we will follow their change and post an announcement here as well as on https://twitter.com/maxmind

In legacy GeoIP, we return a FIPS region code of 11 or 20. In GeoIP2, we return a iso code of 40 or 43 in the subdivision object.

Due to the nature of geolocation technology and other factors beyond our control, we cannot guarantee any specific future accuracy level. Further, accuracy figures are subject to change as IP networks are reallocated.

December 16, 2014
As part of our ongoing work to return more data, MaxMind has increased the number of IP addresses that map to a postal code.

An ISP may allocate an IP range over multiple postal codes. In such cases, MaxMind cannot accurately determine the exact postal code associated with an IP address in that range. Previously we only included a postal code if we were confident of the resolution. Now, we include more postal codes, returning a postal code within a 50km radius.

We are doing this as a convenience to our customers who want to use the postal code instead of the city to link to other data.

In addition, we’ve added Poland and Portugal to the list of countries for which we return postal codes. The full list of countries for which we provide postal codes now includes the following:

Argentina, Australia, Austria, Belgium, Brazil, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Finland, France, Germany, Hungary, Iceland, India, Italy, Malaysia, Mexico, Netherlands, New Zealand, Norway, Pakistan, Poland, Portugal, Russia, Slovakia, South Africa, Spain, Sweden, Switzerland, Thailand, United Kingdom, United States.