Cell based positioning with TK-202

The TK-202 tracker sends the mobile network data, when you configure it to reply in "SMS format" and request current location with smsone+password command.

The last four numbers in the SMS define MCC (Mobile Country Code), MNC (Mobile Network Code), LAC (Location Area Code) and Cell Id. The last two are in hexadecimal format. To find out the location of the tracker without GPS signal, you can use for example the following services:

1. http://cellphonetrackers.org/gsm/gsm-tracker.php (before inserting the LAC and Cell Id, remember to convert them into decimal format!)
2. http://www.track-position.com/loc?c=cellid-lac-mnc-mcc (replace word cell id and lac with decimal converted values; replace words mnc and mcc with their respective values)
3. http://openbmap.org/api/getGPSfromCellular.html
4. https://labs.ericsson.com/apis/mobile-location/ (requires registration)
5. http://opencellid.org/ (requires registration)