Area Code 3623 – Hobart
The phone area code for Hobart is 3623 (international format +613623). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 3623
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Hobart
Overview of Area Code +61 3 623
The Australian telephone numbering plan, administered by the Australian Communications and Media Authority (ACMA), assigns geographic area codes under the international country code +61. The prefix +61 3 623 is part of the geographic numbering zone for the state of Tasmania. Specifically, this prefix serves the Hobart metropolitan area and its surrounding suburbs. The area code 03 covers the entire state of Tasmania, as well as parts of Victoria, but the 623 prefix is uniquely allocated to the Hobart region.
Geographic Coverage and Administrative Jurisdiction
The +61 3 623 prefix is assigned to the capital city of Tasmania, Hobart, which is also the administrative and economic hub of the state. Suburbs and localities that may be served by this prefix include the Hobart central business district, North Hobart, South Hobart, Sandy Bay, Battery Point, and other inner-city areas. The prefix is used for fixed-line telephone services, including PSTN (Public Switched Telephone Network) and VoIP (Voice over Internet Protocol) services that are registered to a physical address within the coverage area.
Dialing Formats and Instructions
For callers within Australia, the national significant number for a Hobart number is 03 623X XXXX, where X represents the subscriber's unique digits. To call from overseas, the international format is +61 3 623X XXXX, dropping the leading zero of the area code. For example, a local Hobart number might be 03 6234 5678, which would be dialed as +61 3 6234 5678 from abroad.
- Local calls within Hobart: Dial the 8-digit local number (e.g., 6234 5678) without the area code.
- Calls from other Australian states: Dial the trunk prefix 0, then the area code and number: 03 6234 5678.
- International calls from outside Australia: Dial the international access code (e.g., 00 or +), then the country code 61, the area code without the leading zero, and the subscriber number: +61 3 6234 5678.
Overlay Considerations and Number Portability
Currently, the 03 area code does not have an overlay in Tasmania; the region is not subject to an additional area code. However, Australia implemented full number portability, allowing customers to retain their telephone numbers when changing service providers, including mobile and fixed-line services. As a result, a number with the +61 3 623 prefix may be assigned to a VoIP service that is not physically located in Hobart, but the number remains geographically associated with the Hobart area for routing and emergency services purposes.
Caller Instructions for Local and Foreign Callers
For local callers within Hobart, it is common to dial only the 8-digit local number for calls within the same charging area. However, for clarity and consistency, many businesses and individuals list their numbers in the national format (03 623X XXXX). Foreign callers should always use the international format +61 3 623X XXXX to ensure proper routing. It is important to note that the plus sign (+) represents the international access code used in the caller's country (e.g., 011 in the US, 00 in most European countries).
Understanding the structure of Australian geographic numbers helps both residents and international callers connect efficiently. The +61 3 623 prefix is a reliable indicator of a Hobart-based service, though number portability may occasionally result in a non-local service using this code.