Yahoo Messenger Port List
Servers:
scs.msg.yahoo.com
scsa.msg.yahoo.com
scsb.msg.yahoo.com
scsc.msg.yahoo.com
Port: 20, 23, 25, 80, 119, 5050, 8001, 8002
Webcam Connection:
Protocol: TCP
Server: webcam.yahoo.com
Port: 5100
File Transfer Connection:
Protocol: HTTP
Server: filetransfer.msg.yahoo.com
Port: 80
File Sharing Connection:
Protocol: HTTP
Port: 80
Voice Chat Connection:
Protocol: UDP or TCP
Servers:
v1.vc.scd.yahoo.com
v2.vc.scd.yahoo.com
v3.vc.scd.yahoo.com
v4.vc.scd.yahoo.com
v5.vc.scd.yahoo.com
v6.vc.scd.yahoo.com
v7.vc.scd.yahoo.com
v8.vc.scd.yahoo.com
v9.vc.scd.yahoo.com
v10.vc.scd.yahoo.com
v11.vc.scd.yahoo.com
v13.vc.sc5.yahoo.com
vc1.vip.scd.yahoo.com
Ports: 5000-5010