AS21437 AVITI-AS Aviti ltd.

AVITI-AS Aviti ltd. · registered in Ukraine

IPv4 addresses2,5606 prefixes · <0.001% of announced IPv4

Rank in Ukraine#295largest network in UA by IPv4 space, of 1,527 · 0.03% of UA

Rank worldwide#20,048of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUkraine1,564 ASNs registered there

Open AS21437 in ASN lookup Look up an IP in this network (81.17.128.1) All networks in Ukraine

IPv4 prefixes

All 6 prefixes, in address order.

81.17.128.0/24
81.17.131.0/24
81.17.132.0/22
81.17.136.0/24
81.17.138.0/23
193.104.133.0/24

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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