It has expansive 5G home internet coverage of the area with 71% availability and offers a download speed of up to 300 Mbps. Verizon offers another solid internet plan in San Diego. Ideal for the remote worker living in sunny San Diego, 5 Gbps is one of the fastest internet speeds available. With almost 94% coverage of the area through fixed wireless or fiber, AT&T offers one of the fastest download speeds of 5 Gbps. It’s also one of the Best Internet Service Providers of 2023 in our rating. Best Internet Service Providers in San Diego AT&TĪT&T is one of the top internet service providers in San Diego, California.