CO     - Special callsign CO200SMP will be in use on 8-30 June  to celebrate the 200th anniversary of San Miguel del Padron,  one of the fifteen municipalities  that  make up the  city of  Havana, Cuba.  Look for activity on the HF bands CW, FT8 and SSB. QSL direct to CO2AME.

G      - MZX was the callsign allocated  to Marconi's  radio factory in  New Street in Chelmsford,  where the  first  live public  entertainment broadcast  (a song recital by  the renowned operatic soprano,  Dame Nellie Melba)  took place  on  15 June 1920.  Celebrating the 100th anniversary of that milestone,  members of the  Chelmsford  Amateur Radio Society (G0MWT) will be active as GB100MZX on 13-20 June. QSL via operator's instructions.

G      - Marking the 100th anniversary of the formation  of the  Royal Corps of Signals, special callsign GB100RS will be operated by members of the Royal Signals ARS  from  England on 28 June-8 August,  Northern Ireland on  9 August-5 September,  Wales on  6 September-3 October, and Scotland on 4-17 October. Additionally, GB100RCS will be active from the HQ station at Blandford Camp, Dorset as soon as permission to  reopen  it  is  received.  See  https://rsars.org.uk/  for more information.

GW     - Also celebrating  the centenary of  Nellie Melba's recital  will be GB0MZX from Wales, operated by members of the  Dragon Amateur Radio Club (GW4TTA)  on  12-21 June.  QSL  via  operator's  instructions. Certificates  will  be  available,  details  will be  published  onhttps://www.qrz.com/db/GB0MZX.

HL     - Han, DS2GOO and Lee,6K2CEW will be active as DS2GOO/4 and  6K2CEW/4 from Pogil Island (AS-085) on 9-11 June. They will operate CW, SSB, FT8  and other digital modes  on  80-6 metres.  QSL via home calls. [TNX HL1VAU]

OJ0    - Weather permitting, Henri, OH3JR, will land on Market Reef (EU-053) on 5 June and be active as OJ0A during the  COVID-19 Radio communition Event (6-7 June) [425DXN 1517]. He expects to remain there for one week and be QRV as  OJ0JR  after the  COVID-19 event.  QSLs via OH3JR. [TNX OH2BH]

UA     - R20RUS and RU20RU are two special callsigns for the  Miller DX Club (https://mdxc.ru/)  to celebrate  Russia Day on 8-14 June.  QSL via Club Log's OQRS.  Russia Day,  the national holiday of the  Russian Federation, has celebrated annually on 12 June since 1992.

VK     - Special callsign VI110WIA celebrates the  110th anniversary  of the Wireless Institute of Australia.  Commencing on 1 June and  ceasing on 31 December, it is available for use by WIA affiliated clubs and all WIA members. QSL via LoTW and eQSL.

VK     - The Wireless Institute of  Australia  has  joined  the  "Stay Home" campaign and be active as VK20HOME between  1 June and 31 December. The special callsign is available  for use by  WIA affiliated clubs and all WIA members. QSL via LoTW and eQSL.

VK     - The VK5KI activity from Kangaroo Island (OC-139) [425DXN 1508]  has been rescheduled and  scaled down.  It will no longer coincide with the IOTA Contest, but will be held on 13-18 July as a holiday style operation.  Grant, VK5GR  and  Andrew, VK5AKH will be QRV  with one  station on 80-10 metres. QSL via M0OXO's OQRS. More information can be found on https://vk5gr-iota.net/. [TNX VK5GR]