| Name of the place | CERL ID of a place | Country | Longitude | Latitude | |
|---|---|---|---|---|---|
| Appindegam | cnl00026218 | Netherlands | 6.866667 | 53.316667 | |
| Appingedam | cnl00006910 | Netherlands | 6.86 | 53.32 | |
| Apt | cnl00006913 | France | 5.4 | 43.88 | |
| Aquino | cnl00019968 | Italy | 13.7 | 41.5 | |
| Aquitaine | cnl00024447 | France | — | — | |
| Arbergen bei Bremen | cnl00031229 | Germany | — | — | |
| Arcetri | cnl00019723 | Italy | 11.2518 | 43.75485 | |
| Arcueil | cnl00002818 | France | 2.33305555555556 | 48.7997222222222 | |
| Arezzo | cnl00006937 | Italy | 11.88 | 43.4091666666667 | |
| Argeliers | cnl00022215 | France | 2.9167 | 43.3167 | |
| Argentan | cnl00006943 | France | 0.02 | 48.75 | |
| Argenteuil | cnl00005204 | France | 2.25 | 48.95 | |
| Argos | cnl00020160 | Greece | 22.73333 | 37.63333 | |
| Arles | cnl00006949 | France | 4.63 | 43.67 | |
| Armagh | cnl00002819 | Ireland | -6.65444444444444 | 54.3497222222222 | |
| Armagnac | cnl00036230 | France | — | — | |
| Arnay-le-Duc | cnl00017537 | France | — | — | |
| Arnemuiden | — | Netherlands | 3.6759015 | 51.5011231 | |
| Arnhem | cnl00028787 | Netherlands | 5.91944444444445 | 51.9794444444444 | |
| Arnhem [non-CERL] | — | — | — | — | |
| Arnstadt | cnl00006955 | Germany | 10.9497222222222 | 50.8297222222222 | |
| Arpino | cnl00019498 | Italy | 13.6111111111111 | 41.6480555555556 | |
| Arquà | cnl00019887 | Italy | — | — | |
| Arras | cnl00006973 | France | 2.58 | 50.28 | |
| Arzl (Innsbruck) | cnl00042229 | Austria | — | — |