521138 is the PIN Code of Ayyanki, which is located in Krishna district, Andhra Pradesh state.
Ayyanki Post Office is located at Ayyanki, Krishna of ANDHRA PRADESH state. It is a Branch Post Office. A Post Office (PO) / Dak Ghar is a facility in charge of sorting, processing, and delivering mail to recipients. POs are usually regulated and funded by the Government of India (GOI). Pin code of Ayyanki PO is 521138. This Postoffice falls under Machilipatnam postal division of the Andhra Pradesh postal circle.