AS51840 CSL-AS CSL Data Centre Services Limited

CSL-AS CSL Data Centre Services Limited · registered in Malta

IPv4 addresses5,3766 prefixes · <0.001% of announced IPv4

Rank in Malta#8largest network in MT by IPv4 space, of 41 · 0.83% of MT

Rank worldwide#13,164of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryMalta41 ASNs registered there

Open AS51840 in ASN lookup Look up an IP in this network (91.220.139.1) All networks in Malta

IPv4 prefixes

All 6 prefixes, in address order.

91.220.139.0/24
185.27.56.0/22
185.64.56.0/22
185.176.196.0/22
185.177.48.0/22
185.218.148.0/22

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources