After mac2vendor another old tool that I made is back online on the new site. Gsmtool is back new and improved. This tool lets you lookup which operator a GSM IMSI number belongs to or list all the Mobile Network Codes for a certain Mobile Country Code.
The old version was based on information from Wikipedia, this new version uses information from the ITU and should therefore be a lot more accurate. Also, the previous version did not handle 3 digit MNC codes properly.
Also: Really, ITU, who on earth shares long lists of assignments in
MS Word format?!
But that aside… Luckily
awk are here to save the day.