Contact Us  
     
 
Head Office  
Brgy. Bigbiga, Santiago, Ilocos Sur  
Telefax: 077 674 7267  
  ISECO Main Hotline: 0917 7775688  
  ISD: 0917 7736574  
Narvacan Sub-Office  
Brgy. Nanguneg, Narvacan  
Hotline: 0917 5793525  
     
     
 
     
 
Cabugao Sub-Office  
Brgy. Sagayaden, Cabugao  
Hotline: 0917 5793515  
     
Candon Sub-Office  
Brgy. Bagani Campo, Candon City  
Tel. No.: 742 6004 | 644 0275  
  Hotline: 0917 5793527  
 
     
 
Vigan Sub-Office  
Brgy. Ayusan Norte, Vigan City  
Tel. No.: 722 1285/2085/3039 | 632 1220  
  Hotline: 0917 5793517  
Sta. Cruz Sub-Office  
Brgy. Bayugao West, Sta. Cruz  
Hotline: 0917 5793531  
     
 
     
 
e-mail: iseco_1974@yahoo.com.ph
 
 
 
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