Ping Issues

Could someone please explain to me exactly why I am having issues pinging. I’ve grabbed a list that apparently is supposed to be a “working list” yet it all returns errors.

Please check this out for me please.

? zhuaxia.com/rpc/server.php could not be pinged. Error message: “transport error – could not open socket: 100 “
? xping.pubsub.com/ping/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? xmlrpc.blogg.de could not be pinged. Error message: “transport error – could not open socket: 100 “
? https://www.blogpeople.net/servlet/weblogUpdates could not be pinged. Error message: “transport error – could not open socket: 100 “
? wasalive.com/ping/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? rpc.weblogs.com/RPC2 could not be pinged. Error message: “transport error – could not open socket: 100 “
? rpc.twingly.com/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? rpc.technorati.jp/rpc/ping could not be pinged. Error message: “transport error – could not open socket: 100 “
? rpc.reader.livedoor.com/ping could not be pinged. Error message: “transport error – could not open socket: 100 “
? rpc.technorati.com/rpc/ping could not be pinged. Error message: “transport error – could not open socket: 100 “
? rpc.pingomatic.com could not be pinged. Error message: “transport error – could not open socket: 100 “
? rpc.icerocket.com:10080/ could not be pinged. Error message: “transport error – HTTP status code was not 200”
? rpc.blogrolling.com/pinger/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? rpc.bloggerei.de/ping/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? r.hatena.ne.jp/rpc could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.wordblog.de/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.weblogalot.com/rpc.php could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.syndic8.com/xmlrpc.php could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.snap.com/ping/RPC2 could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.myblog.jp/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.namaan.net/rpc could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.kutsulog.net/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.fc2.com/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.feedburner.com/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.blogs.yandex.ru/RPC2 could not be pinged. Error message: “transport error – could not open socket: 100 “
? ping.blogoon.net/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? holycowdude.com/rpc/ping/ could not be pinged. Error message: “transport error – could not open socket: 100 “
? newsblog.jungleboots.org/ping.php could not be pinged. Error message: “transport error – could not open socket: 100 “
? hamo-search.com/ping.php could not be pinged. Error message: “transport error – could not open socket: 100 “
? feedsky.com/api/RPC2 could not be pinged. Error message: “transport error – could not open socket: 100 “
? blogpeople.net/ping could not be pinged. Error message: “transport error – could not open socket: 100 “
? blog.goo.ne.jp/XMLRPC could not be pinged. Error message: “transport error – could not open socket: 100 “
? audiorpc.weblogs.com/RPC2 could not be pinged. Error message: “transport error – could not open socket: 100 “
? api.my.yahoo.co.jp/RPC2 could not be pinged. Error message: “transport error – could not open socket: 100 “
? api.my.yahoo.com/RPC2 could not be pinged. Error message: “transport error – could not open socket: 100 “
? api.moreover.com/RPC2 could not be pinged. Error message: “transport error – could not open socket: 100 “

What is going on here and does anyone have an absolute working list of sites to ping?