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AS51139
AS51139 CASAATCSERVIZI-AS CASA ATC SERVIZI SRL
CASAATCSERVIZI-AS CASA ATC SERVIZI SRL · registered in Italy
IPv4 addresses 2,048 1 prefixes · <0.001% of announced IPv4
Rank in Italy #472 largest network in IT by IPv4 space, of 1,081 · <0.01% of IT
Rank worldwide #23,621 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
Country Italy 1,121 ASNs registered there
IPv4 prefixes
All 1 prefix, in address order.
Similar-sized networks in Italy
ASN Name IPv4 addresses
AS49733 #469 DITECH-AS TEKNE S.R.L.2,048
AS50417 #470 WKEY-CORE-AS W Key srl2,048
AS50627 #471 AS-FRW Frosinone Wireless S.R.L.2,048
AS51940 #473 ITAS-AS ITAS MUTUA2,048
AS57144 #474 ICCREA-AS BCC SISTEMI INFORMATICI S.P.A.2,048
AS57846 #475 satortech Satortech S.R.L.2,048
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