diff --git a/src/python/location-importer.in b/src/python/location-importer.in
index fbc402f..ea72790 100644
--- a/src/python/location-importer.in
+++ b/src/python/location-importer.in
@@ -375,6 +375,13 @@ class CLI(object):
 					SELECT _autnums.number, _organizations.name FROM _autnums
 						JOIN _organizations ON _autnums.organization = _organizations.handle
 				ON CONFLICT (number) DO UPDATE SET name = excluded.name;
+
+				--- Purge any redundant entries
+				DELETE FROM networks candidates WHERE EXISTS (
+					SELECT FROM networks
+						WHERE networks.network >> candidates.network
+							AND networks.country = candidates.country
+				);
 			""")
 
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