| Telstra Exchange Service Area (ESA) search Utility The ESA search utility is designed to return the unique Exchange Service Area (ESA) code for a specific Telstra exchange. If you know the name (or area) of a Telstra exchange, type in the name in the search box below to return the associated ESA code. eg: Exhibition St exchange in Victoria has an ESA code "EXHN"
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| If you are not sure which exchange feeds a customer site, please clarify with the Telstra Wholesale Distance Calculator or your Telstra Wholesale representative. |
