A3     - Takio, JH3QFL will be active as A31AA from Nuku'alofa on Tongatapu Island (OC-049), Tonga on 13-22 May. He will operate FT8 on 80-6 metres. QSL via LoTW, or direct to JH3QFL. [TNX DX World]

C5     - Look for C5B [425DXN 1823] to be active from the Bijol Islands (AF-060) on 3 May, from 09:30 UTC to 14:00 UTC. Plans are to be on the RS44 satellite and on the HF bands, possibly focusing on 17 metres. [TNX The Daily DX]

CE0Z   - Felipe, XQ7IR, will be active as 3G0Z from Robinson Crusoe Island (SA-005), Juan Fernandez for "approximately three weeks" in May [425DXN 1821]. A side trip to IOTA Group SA-101 is being planned: "there is now a very strong possibility of carrying out a short but highly valuable operation from Alejandro Selkirk Island, with an estimated on-air window  of approximately 24 to 36 hours", Felipe says.
"This activation will depend entirely on the final logistics costs involved in moving part of my radio equipment to the island, as well as securing enough gasoline to keep the generator running during the operation. Should this operation take place, it will be under the callsign XR0Z, which has already been requested and officially authorized by SUBTEL. At this moment,  everything is under evaluation and the project remains open, but the chances are real and increasing". Bookmark https://www.robinsoncrusoe2026.net for updates. The first and so far only operation from SA-101 took place in February 2020 (CB0Z, operated by IT9YRE and K9AJ).

DL     - DR170TESLA is the special callsign for members of DARC's Ortsverband Mainz (DL0MZ) to celebrate the 170th anniversary  of the birth of Nikola Tesla between 1 May and 31 December. QSL via Club Log's OQRS (preferred), or via DK8ZZ.

E5/S   - Tom, K7TLM and Leslie, KD7YZE will be active as  E51TLM  from Rarotonga (OC-013),  South Cook Islands  on 4-9 May.  They will operate QRP on 28385 kHz (SSB)  and 28060 kHz (slow CW)  between  19:00 and 01:00 UTC. QSL via K7TLM, direct or bureau.

EI     - Look for Pete M1PTR  and Kieron M5KJM (EI6KP)  to be QRV as EJ6KP/p from Arranmore Island (EU-121) on 21-23 May. They will operate  SSB on 40, 20  and 15 metres  during the local  daytime hours.  QSL via Club Log's OQRS, LoTW, or via M5KJM (direct or bureau).

I      - Commemorating the centenary of the Amundsen-Ellsworth-Nobile Transpolar Flight, members of  ARI Colli Albani  will operate under  the special  callsign  II0NRG  between  12 May and 31 July.  The suffix stands for  "Norge",  the Italian-built airship  that  achieved the first verified journey to the North Pole (11-14 May 1926)  and completed the first flight  across the polar ice  cap  from Europe  to America.  QSL via I0KNQ.  A certificate will be available,  details will be published on QRZ.

JA     - Take, JI3DST  and  Ken, JA4GXS  will  be  active  as  JI3DST/6  and JA4GXS/6 from the  Danjo Islands (AS-056)  between 08:00 UTC on  15 May and 22:00 UTC on 16 May, with 22-23 May as backup dates in case of bad weather.  As the islands are uninhabited  and lack a regular ferry service,  AS-056  is currently  the second  most wanted  IOTA group in Japan.  They plan to operate  SSB, CW, FT8 and FT4 on  40, 30, 20, 17 and 6 metres, running battery power to a wire dipole for HF, and a 2-element delta loop for 6m. Suggested frequencies are:
7055, 7120, 14260, 18128, 50120 (SSB)
7025, 10115, 14040, 18098, 50120 (CW)
7074, 10136, 14074, 18100, 50313 (FT8)
7070, 10130, 14090, 18090, 50313 (FT8 MSHV)
7047. 5, 10140, 14080, 18104, 50318 (FT4)
The QSL routes will be announced at a later date.

LZ     - The foundations of Bulgaria's organized amateur radio movement were laid in 1926, w hen 38 enthusiasts established the  Bulgarian Radio Club - a predecessor to today's  Bulgarian Federation of Radio Amateurs (BFRA).  Celebrating this centenary, members of the BFRA will be active as  LZ100LZ  on 160-10 metres  CW, SSB and  digital modes between 1 and 31 May. See https://lzprint.eu/lz100lz-award/ for the certificates.

TF     - Rikk, WE9G will be active as TF/WE9G from Borg, Iceland (EU-021) on 10-19 May.  He will operate FT modes with some limited SSB on CW on various bands.  QSL via Club Log's OQRS,  LoTW and QRZ, or via home call (direct and bureau).

XT     - Harald, DF2WO  will be active  again  as  XT2AW  from  Ouagadougou, Burkina Faso on 6-19 May.  He will operate CW, SSB and FT modes  on various HF bands and the QO-100 satellite. QSL via M0OXO's OQRS.