Glo is now the cheapest data subscription network in Nigeria. They offer daily, weekly and monthly subscription plans at the cheapest rate. My favorite is 10gig for 2500 naira, which provides internet for all my devices including my laptops.
Here are the subscription codes for glo.
1. 1000 naira for 2gig: *127*53#
2. 2000 naira for 6gig: *127*55#
3. 2500 naira for 10gig: *127*58#
4. 3000 naira for 12gig: *127*54#
more can be found on their website @ Glo site
