AS21254 CTM-ASN CITCO TECHNOLOGY MANAGEMENT (SWITZERLAND) SA

CTM-ASN CITCO TECHNOLOGY MANAGEMENT (SWITZERLAND) SA · registered in Switzerland

IPv4 addresses1,5363 prefixes · <0.001% of announced IPv4

Rank in Switzerland#278largest network in CH by IPv4 space, of 741 · 0.01% of CH

Rank worldwide#26,544of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySwitzerland783 ASNs registered there

Open AS21254 in ASN lookup Look up an IP in this network (77.246.128.1) All networks in Switzerland

IPv4 prefixes

All 3 prefixes, in address order.

77.246.128.0/22
77.246.133.0/24
77.246.134.0/24

Similar-sized networks in Switzerland

ASNNameIPv4 addresses

AS41294#275 ZUGERKB Zuger Kantonalbank1,536

AS198951#276 BLS-AG BLS AG1,536

AS4410#277 CreditSuisseGroup-AS - Credit Suisse Group1,536

AS25090#279 ALPIQ-AS25090 Alpiq AG1,536

AS31097#280 CORNER Corner Banca SA1,536

AS35030#281 COMFONE_GRX_AS Comfone AG1,536

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