{"id":232,"date":"2012-07-02T10:18:59","date_gmt":"2012-07-02T17:18:59","guid":{"rendered":"http:\/\/ant.isi.edu\/blog\/?p=232"},"modified":"2020-10-19T10:44:42","modified_gmt":"2020-10-19T17:44:42","slug":"ip-geolocation-in-our-browsable-ipv4-map","status":"publish","type":"post","link":"https:\/\/ant.isi.edu\/blog\/?p=232","title":{"rendered":"IP Geolocation in our Browsable IPv4 Map"},"content":{"rendered":"

We’re happy to announce that our browsable Internet map at\u00a0http:\/\/www.isi.edu\/ant\/address\/browse\/<\/a> now includes IP geolocation<\/strong>.<\/p>\n

We plot the latitude and longitude of each IP address around the world as a specific color, placing them on our IPv4 map (the zoomable Hilbert curve). \u00a0Thus we can show how blocks of IPv4 addresses map (above) to the globe (below).<\/p>\n

\"AMITE
\n\"Hue<\/a><\/p>\n

On the IP map, we show latitude\/longitude by color. \u00a0For each address, the\u00a0longitude is the hue<\/strong> (the colors around the rainbow), so North America is blue; South America, fuschia; Europe and Africa, red; and Asia to Australia yellow to green. \u00a0The latitude controls lightness<\/strong>, so things north of the equator are darker, while those south of the equator are lighter. Thus Japan is dark green, while Australia is teal, and Scandanavia is dark read, while south Africa is orange. \u00a0(We have released the source code<\/a> to do this mapping with a BSD license.)<\/p>\n

The IP map shows IP all 4 billion addresses on the Hilbert curve. \u00a0We have discussed this mapping before (see our poster<\/a>).<\/p>\n

Our IP map is zoomable and draggable, so one can look at particular regions of interest. \u00a0For example, here is 128\/8, including ISI (in Los Angeles, dark blue),\u00a0between UC San Diego (also dark blue) and University of Maryland (US east coast, so purple), while the Fininnish University of Helsinki is dark brown, and the Australian University of Melboure is lime green.<\/p>\n

\"Annotated<\/p>\n

Our geolocation data comes from three sources:<\/p>\n