AS51830 C3I-AS C3i Europe EOOD

C3I-AS C3i Europe EOOD · registered in Bulgaria

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Bulgaria#505largest network in BG by IPv4 space, of 669 · <0.01% of BG

Rank worldwide#68,087of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryBulgaria675 ASNs registered there

Open AS51830 in ASN lookup Look up an IP in this network (103.13.135.1) All networks in Bulgaria

IPv4 prefixes

All 1 prefix, in address order.

103.13.135.0/24

Similar-sized networks in Bulgaria

ASNNameIPv4 addresses

AS50431#502 SOT-LTD SOT Security and Observation Technologies EOOD256

AS51196#503 GOLDTELECOM GOLD TELECOM BULGARIA PLC256

AS51383#504 SGROUP S Group International JSC256

AS51855#506 NETCOMP NET COMP Ltd.256

AS51987#507 EGT Euro Games Technology LTD256

AS56371#508 CRBG-AS Creditreform Bulgaria EOOD256

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