Area Code 8940 – Wanneroo
The phone area code for Wanneroo is 8940 (international format +618940). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 8940
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Wanneroo
Geographic Overview
The Australian area code 8940 is a geographic National Destination Code (NDC) allocated to the northern suburbs of Perth, Western Australia, specifically serving the City of Wanneroo and its surrounding localities. This includes suburbs such as Wanneroo, Girrawheen, Koondoola, Marangaroo, Alexander Heights, and parts of Balga. The code falls within the larger Perth metropolitan numbering area, which is designated by the 08 country-wide area code for Western Australia. The 8940 prefix is an integral part of the local PSTN (Public Switched Telephone Network) and is also used by VoIP providers for fixed-line services in the region.
Dialing Formats
For callers within Australia, the number must be dialed in national format: (08) 8940 XXXX. The leading '0' is the national trunk prefix, and the '8' is the geographic area code for Western Australia. When dialing from overseas, the international format is +61 8 8940 XXXX, where the leading '0' is omitted and replaced by the +61 country code. For example, a local call to a Wanneroo business would be dialed as 08 8940 1234, while an international caller would dial +61 8 8940 1234.
Numbering Administration
The allocation of the 8940 prefix is managed by the Australian Communications and Media Authority (ACMA) under the Telecommunications Numbering Plan 2015. It is a geographic number, meaning it is tied to a specific physical exchange area. However, with the advent of number portability, a number with the 8940 prefix may be routed to a service provider or location outside the Wanneroo area if the subscriber has ported their number. This is an important consideration for businesses and individuals who rely on the geographic indication of the number.
Caller Instructions
Local callers within the Perth metropolitan area can dial the eight-digit local number (8940 XXXX) without the area code, provided they are calling from a landline within the same charging zone. However, for clarity and to avoid misdialing, it is recommended to always use the full national number. Mobile phone users in Australia must always dial the full national number, including the area code, as mobile networks do not recognize local dialing.
For international callers, it is essential to use the correct exit code for their country (e.g., 011 from the US, 00 from most European countries) followed by Australia's country code 61, then the area code without the leading zero, and the subscriber number. For example, from the UK, a call would be placed as 00 61 8 8940 XXXX.
Overlay and Future Considerations
Currently, there is no overlay code for the Perth metropolitan area; the 08 area code covers all of Western Australia, including Wanneroo. However, due to increasing demand for numbers, ACMA may introduce changes in the future. It is advisable for businesses to ensure their numbers are portable and to maintain accurate records for emergency services, as location information may be used for 000 (emergency) calls.