IF you are a Idea customer and unable to send sms from your mobile phone then one of the reason could be your sms center number might be wrong, check below list of Idea SMS Center Number based on your circle and update on your phone.
Idea SMS Center Number
Below are the SMS center number for Idea mobile network.
Andhra Pradesh +919848001104
Himachal Pradesh +919882099995
Jammu and Kashmir +919086047111
Madhya Pradesh +919826012311
NESA North East India States +919089001500
Uttar Pradesh East +919889199996
Uttar Pradesh West +919837099995
West Bengal +919093001500
How to Update SMS Center Number
If you want to update or change Idea SMS Center Number on your phone check below:
Go to Messages then Settings then Advanced Settings
Now it will show SMS center number section, choose your mobile carrier and update the SMS service center.