I would add a forth colour on the map too: LTE from multiple carriers or not. e.g. in the UK we only have LTE from one carrier at present, so for practical pur

I would add a forth colour on the map too: LTE from multiple carriers or not. e.g. in the UK we only have LTE from one carrier at present, so for practical purposes most consumers (who are currently locked into contracts) don't have access to LTE, and those that do might choose not to since no competition means that currently LTE is very expensive here -- and that's if it's available at all; presently it's only in a few select cities. Listing "UK Broadband" as an additional LTE carrier is a bit misleading, since they're (to my knowledge) only a wholesaler and don't actually provide a service direct to customers. I think a map showing which countries have multiple carriers would give an extra way of judging how developed a country's LTE infrastructure is. Great map otherwise though!