How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Philip
Philip is now well below its former popularity. All-time it's been given to 658,064 U.S. babies, the 634th most common name by sound today, peaking at 11,601 in 1955, with 993 in 2025.
By sound, Philip also includes the spellings Phillip.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).