Yahoo is unreachable

Internet is working but some web sites are unreachable. Looks like network troubles at Comcast.

C:\>tracert mail.yahoo.com

Tracing route to fo-ds-ats.member.g02.yahoodns.net [98.136.189.41]
over a maximum of 30 hops:

1 6 ms 5 ms 7 ms 10.1.10.1
2 32 ms 22 ms 27 ms 96.120.89.185
3 20 ms 17 ms 17 ms be-10007-sur03.sanjose.ca.sfba.comcast.net [68.85.191.249]
4 21 ms 16 ms 17 ms be-231-ar01.santaclara.ca.sfba.comcast.net [162.151.78.249]
5 * * * Request timed out.
6 * * * Request timed out.
7 * * * Request timed out.
8 * * * Request timed out.
9 * * ^C
C:\>ping mail.yahoo.com

Pinging fo-ds-ats.member.g02.yahoodns.net [98.136.189.41] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 98.136.189.41:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\>ping google.com

Pinging google.com [172.217.6.78] with 32 bytes of data:
Reply from 172.217.6.78: bytes=32 time=36ms TTL=54
Reply from 172.217.6.78: bytes=32 time=38ms TTL=54
Reply from 172.217.6.78: bytes=32 time=14ms TTL=54
Reply from 172.217.6.78: bytes=32 time=36ms TTL=54

Ping statistics for 172.217.6.78:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 14ms, Maximum = 38ms, Average = 31ms