2022-03: Block Russia and Belarus

Modified on Fri, 13 Sep at 12:12 PM

Overview: we've been asked "How can we block all traffic from Russia & Belarus?" We're pleased to be able list the CIDR list for each country, and you can add this to most firewalls; let us know if you need any assistance.


Complete CIDR list for Russia as of March 2020 (22131 entries, aggregated down to 7908)

Complete CIDR list for Belarus as of March 2020 (377 entries, aggregated down to 145)


Available in the attached Excel spreadsheet; can be Copied & Pasted as plain text.





Additional technical info

A list of all "ISO 3166-1 alpha2" (2-letter) country codes is maintained here: https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes

DNS-based RBL (Real-time Black Lists) are maintained by various 3rd-parties, such as https://spameatingmonkey.com/services/SEM-COUNTRY who provide a way to block the entire country list of IPs. Their format is: <countryCode>.country.spameatingmonkey.net (the "positive" DNS query response would be 127.0.0.2)

Examples:

  • by.country.spameatingmonkey.net (Belarus)
  • ru.country.spameatingmonkey.net (Russian Federation)
  • cn.country.spameatingmonkey.net (Russian Federation)

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