These are the shortcodes to use when you want to borrow airtime from any of the networks listed below:
NOTE that the this attracts a service charge of 10% of the airtime borrowed.

MTN - *606#

Airtel - *500*Amount#

Glo - *321*Amount#

Etisalat - *665*Amount#

Here is a List Of Blackberry BIS current prices and subscription codes for major networks in Nigeria,for those of you that have difficulties remembering or switching over to other BIS plans other than the one you started with.