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O2 UK coverage map

Using public data from OFCOM, we've generated a consolidated coverage map for O2's UK mobile GSM 2G 900MHz network. The data isn't great or current (~2012) as the OFCOM disclaimer makes clear but is the best available publicly. OFCOM has encouraged operators to voluntarily share network data since 2005 but operators ceased sharing following a ruling in 2007 that this was public data which must be published. The operators claimed their data would give a competitor a commercial advantage - a plausible excuse.

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