Pin Code of Vayannur BO is 670650, KANNUR, Kerala May 2, 2020November 25, 2019 by Sarkari Help Advertisements 0 (0) Information about the post office and pincode of Vayannur BO, KANNUR, Kerala Vayannur BO Pin Code : 670650 The Pincode 670650 of Vayannur BO represents Thalassery Division post office in KANNUR revenue district which comes under the Kerala Circleof Calicut Region. How useful was this post? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0 No votes so far! Be the first to rate this post.