Carrickfergus currently has 18 mapped postboxes recorded by The Postbox Hunter. The postboxes in Carrickfergus include 1 recorded royal cypher. The most common is EIIR, recorded on 6 postboxes, representing 33.3% of the mapped total. The complete recorded cypher list is: EIIR (6). The most commonly recorded postbox type is Pillar, with 5 mapped examples. The data contains 2 different recorded postbox types. Across the available tagging data, 1 colour are represented. The most frequently recorded colour is Red, appearing on 5 mapped postboxes. This information is generated from the latest postbox location and tagging data available to The Postbox Hunter.