Novel tools and techniques are provided for implementing universal broadband network gateway functionality. In various embodiments, a first pluggable interface device may be removed from a port in a gateway device. A second pluggable interface device may be inserted into the port of the gateway device. The first and second pluggable interface devices each includes hardware and/or software configured to allow the gateway device to communicate with a network, each using different network communication technologies among a plurality of network communication technologies. The gateway device includes hardware and/or software that is common to the network communication technologies used by the first and second pluggable interface devices. The gateway device may then establish a communication link with the network via the second pluggable interface device, using the network communication technology used by the second pluggable interface device.