Berikut ini daftar kode observatorium^[1]:

• 000 Royal Observatory, Greenwich United Kingdom ENG Greenwich
• 001 Isaac Roberts' Observatory United Kingdom ENG Crowborough
• 002 Rayleigh Observatory, Chelmsford borough, Essex United Kingdom ENG Rayleigh
• 003 Montpellier Observatory (Observatoire de la Babote; Montpellier Babote Observatory) France Occ Montpellier
• 004 Toulouse Observatory France Occ Toulouse
• 005 Paris Observatory (Observatoire de Paris; Observatoire de Paris-Meudon) France IDF Meudon
• 006 Fabra Observatory (Observatori Fabra) Spain CT Fabra Observatory, Barcelona
• 007 Paris Observatory (Observatoire de Paris; Observatoire de Paris-Meudon) France IDF Paris
• 008 Algiers Observatory (Centre de Recherche en Astronomie Astrophysique et Géophysique) Algeria - Algiers-Bouzareah
• 009 Uecht Observatory (Sternwarte Uecht, Solar Observatory at Uecht) Switzerland SWG Bern-Uecht
• 010 CERGA Observatory (Centre de recherches en géodynamique et astrométrie) [2] France PACA Caussols
• 011 Wetzikon Observatory (Sternwarte Wetzikon) Switzerland SWG Wetzikon
• 012 Royal Observatory of Belgium (Uccle Observatory; Observatoire Royal de Belgique; Koninklijke Sterrenwacht van België) Belgium BCR Uccle

Wetzikon Observatory (Sternwarte Wetzikon) Switzerland SWG Wetzikon

• 013 Leiden Observatory (Sterrewacht Leiden) Netherlands Zuid Holland Leiden
• 014 Marseille Observatory France PACA Marseille
• 015 Sonnenborgh Observatory Netherlands Utrecht Utrecht
• 016 Besançon Astronomical Observatory (Observatoire de Besançon) France BFC Besançon
• 017 Hoher List Observatory (Observatorium Hoher List) Germany RP Hoher List
• 018 Düsseldorf-Bilk Observatory (Sternwarte Bilk) Germany NRW Düsseldorf-Bilk
• 019 Neuchâtel Observatory Switzerland SWF Neuchatel
• 020 Nice Observatory (Observatoire de Nice); observer: Matthieu Conjat [3]: 21  France PACA Nice
• 021 Karlsruhe Observatory (Sternwarte Karlsruhe) Germany BW Karlsruhe
• 022 Observatory of Turin (Pino Torinese; Osservatorio Astronomico di Torino) Italy P Pino Torinese
• 023 Wiesbaden Observatory (Sternwarte Wiesbaden) Germany HE Wiesbaden
• 024 Heidelberg-Königstuhl State Observatory (Heidelberg Observatory; Landessternwarte Heidelberg-Königstuhl) Germany BW Heidelberg-Konigstuhl
• 025 Stuttgart Observatory Germany BW Stuttgart
• 026 Zimmerwald Observatory (Observatorium Zimmerwald) Switzerland SWG Bern-Zimmerwald
• 027 Brera Astronomical Observatory (Osservatorio Astronomico di Brera) Italy Lo Milan
• 028 Würzburg Observatory (Sternwarte der Universität Würzburg) Germany FB Würzburg
• 029 Hamburg Observatory (Bergedorf Observatory; Hamburger Sternwarte) Germany H Hamburg-Bergedorf
• 030 Arcetri Observatory (Osservatorio Astrofisico di Arcetri) Italy Tu Arcetri Observatory, Florence
• 031 Sonneberg Observatory Germany TH Sonneberg
• 032 Jena Observatory (Astrophysikalisches Institut und Universitäts-Sternwarte Jena) Germany TH Jena
• 033 Karl Schwarzschild Observatory (Karl-Schwarzschild-Observatorium) Germany TH Karl Schwarzschild Observatory, Tautenburg
• 034 Monte Mario Observatory (Osservatorio Astronomico di Roma Sede di Monte Mario) Italy La Monte Mario Observatory, Rome
• 035 Østervold Observatory (Copenhagen University Observatory; Københavns Universitet Astronomisk Observatorium) Denmark - Copenhagen
• 036 Vatican Observatory (Specola Vaticana) Vatican City - Castel Gandolfo
• 037 Collurania-Teramo Observatory (Osservatorio Astronomico di Collurania-Teramo) Italy Ab Collurania Observatory, Teramo
• 038 Astronomical Observatory of Trieste (Osservatorio Astronomico di Trieste) Italy F Trieste
• 039 Lund Observatory (Lunds Universitet Institutionen för astronomi)
• 040 Lohrmann Observatory Germany SN Dresden University of Technology
• 041 Innsbruck Observatory Austria Ty Innsbruck
• 042 Einstein Tower Germany BB Potsdam
• 043 Asiago Astrophysical Observatory (Osservatorio Astrofisico di Asiago) Italy V Asiago Astrophysical Observatory, Padua
• 044 Astronomical Observatory of Capodimonte (Osservatorio Astronomico di Capodimonte) Italy Cam Capodimonte Observatory, Naples
• 045 Vienna Observatory (since 1879) (Universitäts-Sternwarte Wien) Austria Vi Vienna (since 1879)
• 046 Kleť Observatory, České Budějovice (Hvězdárna Kleť) Czech Republic JC Kleť Observatory, České Budějovice
• 047 Poznań Observatory (Obserwatorium Astronomiczne Uniwersytet im. Adama Mickiewicza w Poznaniu) Poland WV Poznań
• 048 Hradec Králové Observatory (Hvězdárna Hradec Králové) Czech Republic Hradec Králové Hradec Králové
• 049 Kvistaberg Observatory Sweden Up Uppsala-Kvistaberg
• 050 Stockholm Observatory (before 1931) (Stockholms observatorium) Sweden Sö Stockholm (before 1931)
• 051 Royal Observatory, Cape of Good Hope South Africa WC Cape
• 052 Stockholm Observatory (since 1931) (Saltsjöbaden Observatory) Sweden Sö Stockholm-Saltsjobaden
• 053 Konkoly Observatory (Konkoly Obszervatórium) Hungary Budapest Konkoly Observatory, Budapest (since 1934)
• 054 Brorfelde Observatory (Brorfelde Observatoriet) Denmark - Brorfelde
• 055 Kraków Observatory Poland LPV Cracow
• 056 Skalnaté pleso Observatory (Observatórium Skalnaté pleso) Slovakia Prešov Skalnate Pleso
• 057 Belgrade Observatory Serbia - Belgrade