| Postal Code | Locality / District | Administrative Area | Coordinates |
|---|---|---|---|
| Antsirabe | Antsirabe I District · Vakinankaratra Region | -19.86586, 47.03333 | |
| Fandriana | Fandriana District · Amoron i Mania Region | -20.23333, 47.38333 | |
| Tsinjorano | Antsirabe I District · Vakinankaratra Region | -19.91667, 47.05 | |
| Vohitrambo | Fandriana District · Amoron i Mania Region | -20.13333, 47.46667 | |
| Talata | Antsirabe I District · Vakinankaratra Region | -19.86667, 46.98333 | |
| Vohibolo | Fandriana District · Amoron i Mania Region | -20.21667, 47.3 | |
| Moratsiazo | Antsirabe I District · Vakinankaratra Region | -19.86667, 46.96667 | |
| Voatavomonta | Fandriana District · Amoron i Mania Region | -20.13333, 47.58333 | |
| Antanifotsy | Antsirabe I District · Vakinankaratra Region | -19.83333, 47.01667 | |
| Vatomitsangana | Fandriana District · Amoron i Mania Region | -20.15, 47.55 | |
| Antanetikely | Antsirabe I District · Vakinankaratra Region | -19.93333, 47.05 | |
| Tsarazaza | Fandriana District · Amoron i Mania Region | -20.16667, 47.31667 | |
| Anosiarivo | Antsirabe I District · Vakinankaratra Region | -19.91667, 47.03333 | |
| Tatamalaza | Fandriana District · Amoron i Mania Region | -20.2, 47.46667 | |
| Androvakely | Antsirabe I District · Vakinankaratra Region | -19.88333, 47.06667 | |
| Tanambao | Fandriana District · Amoron i Mania Region | -20.25, 47.63333 |
Postal code prefix 23 in Madagascar covers 16 localities (primarily in Vakinankaratra Region, including Antsirabe), spanning from 231 to 238.
There are 8 active postal codes starting with 23 in Madagascar. Use the interactive directory table above to filter by locality or copy any code in one click.