AS12387 TON TON Total optical Networks AG

TON TON Total optical Networks AG · registered in Switzerland

IPv4 addresses9,2162 prefixes · <0.001% of announced IPv4

Rank in Switzerland#91largest network in CH by IPv4 space, of 741 · 0.06% of CH

Rank worldwide#9,468of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountrySwitzerland783 ASNs registered there

Open AS12387 in ASN lookup Look up an IP in this network (77.237.192.1) All networks in Switzerland

IPv4 prefixes

All 2 prefixes, in address order.

77.237.192.0/19
195.4.176.0/22

IPv6 prefixes

All 1 prefix.

2a00:c10::/32

Similar-sized networks in Switzerland

ASNNameIPv4 addresses

AS206123#88 xelon Xelon AG9,216

AS196810#89 MORESICOM Moresi.Com SA9,216

AS9108#90 ABXnet Abraxas Informatik AG9,216

AS29500#92 SWISSRE-AS Schweizerische Rueckversicherungs-Gesellschaft AG9,216

AS42155#93 CH-EVARD-4 Evard AG9,216

AS6775#94 FINK-TELECOM-SERVICES Andreas Fink8,704

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