The STD code of Ramanthali, a village in Kerala South India, is 0498. Phone calls from this village will invariably be preceded by the 0498 STD code.
If the call is from abroad the 0 will be dropped from the STD code, replaced by the +91 international access code for India. Therefore if you recieve a phone call that begins +91 498 then this call will be from Ramanthali.