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AS198605

AS198605 is AVAST Software s.r.o..

Last updated 5 Oct 2026 from DB-IP ASN Lite (2026-10-01) and RIR statistics (27 Oct 2026)

Short answer

AS198605 belongs to AVAST Software s.r.o.. DB-IP Lite attributes 5,632 IPv4 addresses in 15 ranges and 4 IPv6 ranges to it, 91% of the IPv4 space in Czechia. The number is registered with RIPE NCC in Czechia on 21 Mar 2012.

Facts for AS198605
Operator (DB-IP)AVAST Software s.r.o.
IPv4 addresses5,632
IPv4 ranges15
IPv6 ranges4
RegistryRIPE NCC
Registered21 Mar 2012
Registry countryCzechia (CZ)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

AVAST Software s.r.o. hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 4 IPv6 ranges for AS198605, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

CZ91%
MV5%
CA5%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
5.45.58.0 – 5.45.59.2555.45.58.0/23512
5.62.36.0 – 5.62.37.2555.62.36.0/23512
5.62.54.0 – 5.62.54.2555.62.54.0/24256
5.62.60.0 – 5.62.61.2555.62.60.0/23512
37.156.187.0 – 37.156.187.25537.156.187.0/24256
69.94.64.0 – 69.94.64.25569.94.64.0/24256
69.94.70.0 – 69.94.71.25569.94.70.0/23512
69.94.74.0 – 69.94.75.25569.94.74.0/23512
77.234.40.0 – 77.234.40.25577.234.40.0/24256
91.213.143.0 – 91.213.143.25591.213.143.0/24256
166.98.8.0 – 166.98.8.255166.98.8.0/24256
166.98.10.0 – 166.98.11.255166.98.10.0/23512
185.189.92.0 – 185.189.92.255185.189.92.0/24256
185.189.94.0 – 185.189.95.255185.189.94.0/23512
195.74.76.0 – 195.74.76.255195.74.76.0/24256
2001:67c:284:: – 2001:67c:284:ffff:ffff:ffff:ffff:ffff2001:67c:284::/48IPv6
2a0b:e181:: – 2a0b:e181:ff:ffff:ffff:ffff:ffff:ffff2a0b:e181::/40IPv6
2a0b:e181:108:: – 2a0b:e181:10f:ffff:ffff:ffff:ffff:ffff2a0b:e181:108::/45IPv6
2a0b:e181:400:: – 2a0b:e181:6ff:ffff:ffff:ffff:ffff:ffff2a0b:e181:400::/39IPv6
Showing 15 of 15 IPv4 and 4 of 4 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 5 Oct 2026
  2. NRO RIR delegated-extended statistics · checked 28 Oct 2026