Thank you for writing. Sorry, I do not understand "way numbers". The Boulevard Park Census Designated Place (CDP) is described at https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names/2584949. The south end of Boulevard Park CDP was absorbed in a City of Burien annexation so the neighborhood of Boulevard Park extends south of the current CDP (e.g. the Boulevard Park Library is 12015 Roseberg Ave S). Boulevard Park approximate boundaries: (North) S 99th St, (South) S 128th St, (East) West Marginal Way S, (West) 8th Ave S.