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Tweet the hashtag #isswave, your postcode/city, and your country (you can use country codes such as UK or US).

Here are some examples of valid tweets:

  • #isswave E15 uk
  • #isswave SW5 0TR uk
  • #isswave 55210 us
  • #isswave 34013 ita
  • #isswave sydney australia
  • #isswave paris france
  • #isswave berkeley CA
  • #isswave 3011 ch

The list of three letter country codes (ISO 3166-1 alpha-3 codes) can be found here

If you would like to make sure your tweet will be correctly processed, enter it in area below and make sure the found geolocation is correct.