HTTPfy

AS204666 TLAPNET-CZ Jiri Tlapak

TLAPNET-CZ Jiri Tlapak · registered in Czechia

IPv4 addresses14,33621 prefixes · <0.001% of announced IPv4
Rank in Czechia#45largest network in CZ by IPv4 space, of 570 · 0.17% of CZ
Rank worldwide#7,479of 79,396 networks with IPv4
IPv673 x /32 (4,784,128 x /48)26 prefixes
CountryCzechia599 ASNs registered there
Open AS204666 in ASN lookup Look up an IP in this network (5.59.102.1) All networks in Czechia

IPv4 prefixes

All 21 prefixes, in address order.

  • 5.59.102.0/23
  • 37.221.240.0/22
  • 37.221.244.0/23
  • 37.221.246.0/23
  • 37.221.248.0/21
  • 45.153.192.0/22
  • 85.255.88.0/22
  • 91.224.90.0/23
  • 176.119.192.0/24
  • 185.19.0.0/22
  • 185.64.220.0/23
  • 185.64.222.0/24
  • 185.64.223.0/24
  • 185.74.60.0/24
  • 185.87.140.0/22
  • 185.97.24.0/22
  • 185.188.100.0/23
  • 185.188.103.0/24
  • 185.230.175.0/24
  • 185.243.172.0/22
  • 213.108.162.0/23

IPv6 prefixes

All 26 prefixes.

  • 2a03:d840::/33
  • 2a03:d840:8000::/34
  • 2a03:d840:c000::/35
  • 2a03:d840:e000::/36
  • 2a03:d840:f000::/37
  • 2a03:d840:f800::/38
  • 2a03:d840:fc00::/39
  • 2a03:d840:fe00::/47
  • 2a03:d840:fe02::/48
  • 2a03:d840:fe03::/48
  • 2a03:d840:fe04::/46
  • 2a03:d840:fe08::/45
  • 2a03:d840:fe10::/44
  • 2a03:d840:fe20::/43
  • 2a03:d840:fe40::/42
  • 2a03:d840:fe80::/41
  • 2a03:d840:ff00::/40
  • 2a04:c740::/29
  • 2a04:f940::/29
  • 2a05:aa00::/29
  • 2a06:400::/29
  • 2a0a:10c0::/29
  • 2a0d:1880::/29
  • 2a0d:3140::/29
  • 2a0f:9300::/29
  • 2a0f:fec0::/29

Similar-sized networks in Czechia

ASNNameIPv4 addresses
AS197197#42 M-NET CETIN a.s.16,384
AS57728#43 CEZNET-AS CEZNET s.r.o.15,360
AS29321#44 CentroNetAS O2 Czech Republic, a.s.15,360
AS207187#46 TKRJASEK TKR Jasek, s.r.o.14,336
AS210712#47 GRAPESC-ISP ISP Alliance a.s.14,336
AS51248#48 HOST-TELECOM Host-Telecom.com s.r.o.14,080

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