Area Code 7389 – Brisbane
The phone area code for Brisbane is 7389 (international format +617389). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 7389
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Brisbane
Overview of Area Code 7389
Area code 7389 is a geographic numbering allocation within the Australian telecommunications numbering plan, specifically assigned to the Brisbane region in Queensland. As part of the larger 07 National Destination Code (NDC), which covers Queensland and the Northern Territory, the 7389 prefix serves as a Central Office Code (COC) for fixed-line telephone services. This means that numbers formatted as +61 7 389x xxxx are routed to physical locations within the Brisbane metropolitan area, primarily in the eastern and south-eastern suburbs.
Coverage and Administration
The 7389 prefix falls under the administrative jurisdiction of the Australian Communications and Media Authority (ACMA), which oversees the national numbering plan. The specific exchange area associated with 7389 includes suburbs such as Carina, Carina Heights, Coorparoo, and surrounding districts. These areas are part of Brisbane's inner-eastern corridor, a mix of residential and commercial zones. The prefix is used for both residential and business fixed-line services, and it is not assigned to mobile networks or VoIP services exclusively.
Dialing Formats and Instructions
For local callers within Australia, the number is dialed in national format as (07) 389x xxxx or 07 389x xxxx. The leading '0' is the trunk prefix used for domestic calls. When dialing from outside Australia, international callers must use the country code +61, drop the leading '0', and dial +61 7 389x xxxx. For example, a local call to a number in this area would be dialed as 07 3891 2345, while an international caller would dial +61 7 3891 2345.
Overlay and Number Portability
Brisbane has implemented several overlay codes over the years to address numbering exhaustion. The 07 NDC is not overlaid with a separate area code; instead, new numbers are assigned with different central office prefixes within the 07 range. However, local number portability (LNP) allows customers to retain their 7389 number when switching service providers, even if they move to a different exchange area within the same rate centre. This means that a 7389 number may not always be physically located in the original exchange, but it remains associated with the Brisbane geographic region for rating and routing purposes.
Caller Guidance
For callers within Australia, it is essential to include the trunk prefix '0' when dialing from a different state or territory. For example, a caller in Sydney would dial 07 389x xxxx. International callers should be aware that Australian numbers are typically 10 digits long (including the trunk prefix '0' and the area code), and the correct international format is +61 7 389x xxxx. Always verify the number length and format to avoid misdialing.