.@WhatsAppInc uses port 5223 (and 5222?)/TCP, reserved for XMPP (Jabber) over SSL. Easy for network providers, like Royal KPN, to block…
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.@WhatsAppInc uses port 5223 (and 5222?)/TCP, reserved for XMPP (Jabber) over SSL. Easy for network providers, like Royal KPN, to block…