![simbolo itu](https://www.i3fdz.it/wp-content/uploads/2016/08/simbolo-itu.jpg)
Table of International Call Sign Series (Appendix 42 to the RR)
This table is kept up to date by ITU(International Telecomunication Union).
![simbolo arrl](https://www.i3fdz.it/wp-content/uploads/2016/08/simbolo-arrl.jpg)
DXCC List March 2016 Edition.
Current Entities Total: 339
DXCC Deleted List March 2016 Edition.
Deleted Entities Total: 62
These lists are kept up to date by ARRL (American Relay Radio Legue).
![simbolo darc](https://www.i3fdz.it/wp-content/uploads/2016/08/simbolo-darc.jpg)
Official WAE Country List.
Offizielle WAE-Länderliste.
This table is kept up to date by DARC (Deutschen Amateur-Radio-Club e.V.).
![simbolo ari](https://www.i3fdz.it/wp-content/uploads/2016/08/simbolo-ari-300x52.jpg)
Italian Prefix/Prefissi Italiani.
This list is kept up to date by ARI (Associazione Radioamatori Italiani).
![mappa call area italiane](https://www.i3fdz.it/wp-content/uploads/2016/08/mappa-call-area-italiane-258x300.jpg)
Italian call areas. Click to enlarge.
![simbolo nooa](https://www.i3fdz.it/wp-content/uploads/2016/08/simbolo-nooa.jpg)
Predicted Sunspots Number and Radio Flux
Solar Cycle Progression.
NOAA (National Oceanic and Atmospheric Administration).
SWPC (National Space Weather Prediction Center).
![simbolo nasa](https://www.i3fdz.it/wp-content/uploads/2016/08/simbolo-nasa-300x59.jpg)
Solar Cycle Prediction
NASA (National Aeronautics and Space Administration).
![simbolo qslnet](https://www.i3fdz.it/wp-content/uploads/2016/08/simbolo-qslnet-300x60.jpg)