Quote:
Originally Posted by AndreA
Yes, maybe you're right! But I can't understand why block a country code (+423) and not only the +423663.9xxx...  it's not so difficoult for a network as T-Mo 
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Probably because most LD providers charge same rate for calls to +4236 in general.
For example in Greece, the main telecom Carrier (OTE) has recently increased rates to this prefix by 300%. They now are 1 euro/min!