AS28949 TUSNET-AS Technical University of Sofia

TUSNET-AS Technical University of Sofia · registered in Bulgaria

IPv4 addresses4,0961 prefixes · <0.001% of announced IPv4

Rank in Bulgaria#102largest network in BG by IPv4 space, of 669 · 0.10% of BG

Rank worldwide#15,917of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryBulgaria675 ASNs registered there

Open AS28949 in ASN lookup Look up an IP in this network (81.161.240.1) All networks in Bulgaria

IPv4 prefixes

All 1 prefix, in address order.

81.161.240.0/20

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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