Subway at 3886 Fourth Ave anchors Hillcrest's 92103 ZIP code with a build-your-own sub format rooted in the chain's 1965 founding in Bridgeport, Connecticut. The build-your-own sub format runs every sandwich through a glass-counter ingredient lineup with vegetarian and protein-add options, a customization model distinct from the signature-recipe-only approach at Ike's Love & Sandwiches on University Ave. This location assembles footlong and six-inch subs, wraps, and chopped salads from a glass-counter ingredient lineup that includes vegetarian options. The chain's 1965-era assembly-line format has survived six decades by letting customers control every ingredient in real time, a build-your-own discipline on the same Fourth Ave block as the CCOF-certified organic roasting at Better Buzz Coffee Hillcrest. The outpost's catering arm builds sub platters and boxed-lunch packages scaled for corporate meetings, school events, and multi-department office gatherings.