Notes. The classifications given in Col. 6 are HC H II regions (Class: HC), HC H II region candidates (Class: HC?), and intermediate objects (Class: HC-UC); these have been assigned based on their electron density n_e, physical diameter diam and emission measure EM, derived from the SED fitting method. We also include four sources with ν_t ~ 3.5 GHz, such as G010.9584 + 00.0221 and G035.5781−00.0305 that have previously been identified as HC H II regions but not recovered by this work (see Sect. 4.3), as well as G030.8662+00.1143 and G030.7197-00.0829 that show broad RRL with ΔV > 40 km s⁻¹. For G032.7441−00.0755, the RRL Hnα indicates n = 39, 40, 41, 42. Symbols † and * indicate the known HC H II regions summarized in Table 1 of Yang et al. (2019). Symbol ⋆ represents the four H II regions with data from the literature and archives. References. 1. Beltrán et al. (2007); 2. Sewilo et al. (2004); Sewiło et al. (2011); 3. Kim et al. (2017); 4. De Pree et al. (1997); 5. Keto et al. (2008);