AS50743 Commensus PLC Restricted

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    Keith Taylor
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    AS50743 Commensus PLC spam reported

    General information

    AS number	50743
    Alias	AS50743, ASN50743
    Organization	Commensus PLC
    Country	United Kingdom (GB) flag
    Regional Internet Registry (RIR)	ripe
    Allocation or assignment date	2010-03-18
    Number of IPs originated (v4)	1,024
    ASRank (based on number of IPs)	26,353
    Number of IPv4 prefixes	4
    Number of IPv6 prefixes	0

    AS50743 Spam Sun, Jan 29, 2017 at 11:39 AM
    Author: Franktef (IP:,
    Email: [email protected]

    This British ISP seems to be a backdoor for Russian spammers. From public information, I can’t see why Commensus PLC clients would use their services to legitimately access my websites. Therefore I’ve restricted AS50743 access in CloudFlare.

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