Community Sumner is a focal point for the adjacent suburbs of Clifton, Richmond Hill and Scarborough. In earlier times, residents of those suburbs would often have been considered to be living in Sumner, because these suburbs have road access via Sumner or depend on services available in Sumner. Before 1945, Sumner was a separate borough from Christchurch City. Also, before seven-digit landline telephone numbering was implemented in Christchurch (late 1980s or early 1990s), telephone subscribers in these suburbs would have had a four-digit Sumner telephone exchange number.
Community Sumner is a focal point for the adjacent suburbs of Clifton, Richmond Hill and Scarborough. In earlier times, residents of those suburbs would often have been considered to be living in Sumner, because these suburbs have road access via Sumner or depend on services available in Sumner. Before 1945, Sumner was a separate borough from Christchurch City. Also, before seven-digit landline telephone numbering was implemented in Christchurch (late 1980s or early 1990s) telephone subscribers in these suburbs would have had a four-digit Sumner telephone exchange number.