Wikipedia Zero/IP Addresses

Carriers/Operators participating in the Wikipedia Zero program are encouraged to use an IP address-based zero-rating scheme in order to support HTTPS and have the simplest possible configuration in their systems.

The following blocks should be used for the IP address-based zero-rating scheme for the configuration of all languages, all projects, on both desktop and mobile. As of 9-December-2013, we should continue to present a warning for navigation from mobile to desktop until we can get banners and page rewriting running on desktop sites. Nonetheless, we should turn on banners and page rewriting for mobile web sister projects for a carrier once the carrier indicates it has turned on IP address-based zero-rating.

91.198.174.192/27 91.198.174.224/28 - can be removed after February 15, 2014 198.35.26.96/27 208.80.154.224/27 2620:0:861:ed1a:0:0:0:0/64 2620:0:862:ed1a:0:0:0:0/64 2620:0:863:ed1a:0:0:0:0/64