PHS-WA
AS46790 (PHS-WA) announces at least 23 prefixes:
170.173.0.0/21
Providence Health & Services
1970-01-01
NET-170-173-0-0-1
170.173.0.0-170.173.255.255
170.173.7.0/24
170.173.8.0/22
170.173.11.0/24
170.173.13.0/24
170.173.14.0/24
170.173.20.0/24
170.173.21.0/24
170.173.22.0/24
170.173.23.0/24
170.173.24.0/24
170.173.25.0/24
170.173.26.0/24
170.173.27.0/24
170.173.28.0/24
170.173.29.0/24
170.173.37.0/24
170.173.38.0/24
170.173.71.0/24
170.173.72.0/24
170.173.74.0/24
170.173.76.0/24
170.173.78.0/24
0