| CV-Helios Network | ||
| CV-observers in October 2010 | 37 | 595 |
| Observer number and name | Country | No. obs. |
| CV-001 KJELL INGE MALDE | NORWAY | 20 |
| CV-010 FRANKY DUBOIS | BELGIUM | 23 |
| CV-019 ELMAR JUNKER | GERMANY | 8 |
| CV-020 MANFRED HOLL | GERMANY | 16 |
| CV-021 HOWARD BARNES | NEW ZEALAND | 16 |
| CV-022 ANDREAS VIERTEL | GERMANY | 10 |
| CV-023 HARTMUT BRETSCHNEIDER | GERMANY | 23 |
| CV-033 MIECZYSLAW SZULC | POLAND | 13 |
| CV-034 VVS BELGIUM | BELGIUM | 30 |
| CV-038 GERMAN MORALES | BOLIVIA | 30 |
| CV-044 GERD SCHROEDER | GERMANY | 12 |
| CV-049 MICHAEL MARTIN-SMITH | UNITED KINGDOM | 4 |
| CV-068 SVEN OVE THIMM | DENMARK | 10 |
| CV-080 JAN JANSSENS | BELGIUM | 4 |
| CV-082 PIOTR URBANSKI | POLAND | 26 |
| CV-086 TOS POLAND | POLAND | 31 |
| CV-091 GRZEGORZ DALEK | POLAND | 22 |
| CV-095 BIRGER ANDRESEN | NORWAY | 2 |
| CV-104 LIEVE MEEUS | BELGIUM | 17 |
| CV-105 ALEXEY RYBACK | RUSSIA | 8 |
| CV-107 MONTY LEVENTHAL | AUSTRALIA | 14 |
| CV-122 VLASTISLAV FEIK | CZECH REPUBLIC | 15 |
| CV-135 GEMA ARAUJO | SPAIN | 30 |
| CV-136 FAUSTINO GARCIA | SPAIN | 17 |
| CV-139 JAVIER ALONSO | SPAIN | 15 |
| CV-146 ANGEL ALBERTO GONZÁLEZ COROAS | CUBA | 31 |
| CV-151 JEFFREY CARELS | BELGIUM | 18 |
| CV-153 KRYSTYNA WIRKUS | POLAND | 19 |
| CV-168 GERD LUTZ SCHOTT | GERMANY | 14 |
| CV-171 WALTER JOSE MALUF | BRAZIL | 11 |
| CV-176 GUIDO GUBBELS | BELGIUM | 21 |
| CV-177 HENDRIK DE BACKER | BELGIUM | 21 |
| CV-178 FABIO MARIUZZA | ITALY | 7 |
| CV-183 PIOTR WIRKUS | POLAND | 8 |
| CV-189 DIRK VAN HESSCHE | BELGIUM | 11 |
| CV-190 RUBEN VERBOVEN | BELGIUM | 3 |
| CV-207 ONDREJOV OBS. (AI CAS) | CZECH REPUBLIC | 15 |