MTN FREE CALLING CODES

It’s working on all MTN sim card==> *567*3*8#

50 naira will b deducted and you will be given freee call for 1 week,you will be given 9 minutes everyday till the end of that week

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==> *567*3*7#

75 naira will be deducted and you will be given freee call for 1 week,you will be given 15 minutes everyday till  end of the week
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==> *567*3*6# 100 naira will be deducted and you will be given free call for 1 week,you will be given 39 minutes everyday till d end of that week
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==> *567*3*5*2#
200 naira will be deducted and you  will be given free call for 1 week,you will be given 2 hours everyday till d end of dat week
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==> *567*3*5*1#
This is for a day only,40 naira will b deducted and you  will be given 2 hours for 1 day
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==> *567*3*4*2#
250# you will call unlimited

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*567*3*4*1#