South of 42nd Avenue and the end of California State Route 77 (CA-77, SR 77, or simply "Highway 77"), the street is signed as CA-185; after the junction with CA-92 (which carries the San Mateo Bridge) in Hayward, it is signed as part of CA-238; between I-680 and I-880, it is signed as the relatively obscure CA-262.
International Boulevard, East 14th Street, and Mission Boulevard are each among the longest continuously-named streets in the Bay Area individually. The numbers along the entire thoroughfare are notable in that they are continuous despite name changes, growing with no large gaps from 100 International Boulevard (at 1st Avenue, one block from Lake Merritt), to 46786 Mission Boulevard (at the intersection with Warm Springs Boulevard in Fremont).
It is claimed[by whom?] that the section in Oakland was named International Boulevard due to the diversity in ethnic backgrounds among residents and business owners along the route. Fruitvale, a neighborhood of Oakland with a large Hispanic population, is centered on International Boulevard's intersections with Fruitvale and 35th Avenues, and has seen considerable economic growth in recent years. Immediately northwest of Fruitvale are many businesses long owned locally by East and Southeast Asian residents. Much of the rest of International Boulevard bisects predominantly low-income African-American communities.
Some portions of International Boulevard have gained a reputation as areas of prostitution, and are part of Oakland's continuing troubles with underage prostitution. Award-winning short film, regarding underage prostitution, International Boulevard a documentary, covers the issue of Commercially Sexually Exploited Children (CSEC) in Oakland, and on a national level.