how can i block 1011

i have a PBX using elastix and i want to block 1011 before the NPA, if you know how please help me.

I am sorry i don't know.you can search it in the google, it will give you the answer.

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prepaid cell phones | cell phone service | mobile broadband

You can unlock it through your services provider. You need to unlock code which You will get it through your service provider. I hope that It should be helpful and You will unlock your 1011 cell as soon as far.