41.22.18.203 is not in our blocklists.
Closest based upon description are these blocks:
41.221.16.0-41.221.31.255 Algerie Telecom FAWRI Range Testing
41.221.16.0 41.221.19.255 Algerie Telecom|Anti-p2p Anti P2P
41.221.20.224 41.221.20.231 Algerie Telecom|Anti-p2p Anti P2P
41.221.26.0 41.221.27.255 Algerie Telecom|Anti-p2p Anti P2P
Those ranges are notorious for bombarding your IP according to torrent users. Aside from that they are listed in several blacklists for spam & abuse. Seems they might throttle P2P in order to ease load on their servers too.
spamcop
xbl.spamhaus.org
spam.dnsbl.sorbs.net
cbl.abuseat.org
dnsbl-1.uceprotect.net
dnsbl-2.uceprotect.net
dnsbl-3.uceprotect.net
psbl.surriel.com
sbl-xbl.spamhaus.org
At uceprotect.net they are level 2 & level 3 (high abuse rate). You can test by IP or their ASN number if you wish to doublecheck.
http://www.uceprotect.net/en/rblcheck.phpSelect ASN instead of IP from the dropdown box and use 36947 as ASN
At the same site 41.22.18.203 is listed for having a serious DNS problem, nothing else.
VODACOM-ZA - 41.22.0.0/16 - AS29975