All ASNs

Autonomous System details for AS204666

AS204666

Jiri Tlapak • tlapnet.cz

AS204666 — Jiri Tlapak

AS Name

czjiritlapak

Country

Czechia (CZ)

Website

tlapnet.cz

Number of IPv4

20,480

Number of IPv6

4.52 × 10³⁰

ASN type

Business

Status

Allocated

Registry

RIPE

Allocated

January 29, 2018

Last updated

March 25, 2025

IP Ranges

37 IPv4 prefixes, 9 IPv6 prefixes

Prefix	Company	Number of IPs
5.59.102.0/23	IT Globe s.r.o.	512
37.221.240.0/20	ISP Alliance a.s.	4,096
37.221.241.0/24	ISP Alliance a.s.	256
37.221.242.0/24	ISP Alliance a.s.	256
37.221.243.0/24	ISP Alliance a.s.	256
37.221.245.0/24	Tlapnet s.r.o.	256
37.221.247.0/24	Tlapnet s.r.o.	256
37.221.248.0/24	Tlapnet s.r.o.	256
37.221.249.0/24	Tlapnet s.r.o.	256
37.221.250.0/24	Tlapnet s.r.o.	256
37.221.251.0/24	Tlapnet s.r.o.	256
37.221.252.0/24	Tlapnet s.r.o.	256
45.153.192.0/22	ISP Alliance a.s.	1,024
45.153.192.0/24	ISP Alliance a.s.	256
45.153.194.0/24	Tlapnet	256
45.153.195.0/24	Tlapnet	256
85.255.88.0/22	ISP Alliance a.s.	1,024
91.224.90.0/23	Livady s.r.o.	512
176.119.192.0/24	Jiri Tlapak	256
185.19.0.0/22	ISP Alliance a.s.	1,024
185.64.220.0/22	ISP Alliance a.s.	1,024
185.64.220.0/24	ISP Alliance a.s.	256
185.64.222.0/24	Tlapnet s.r.o.	256
185.74.60.0/24	ISP Alliance a.s.	256
185.87.140.0/22	Jiri Tlapak	1,024
185.87.142.0/23	Jiri Tlapak	512
185.97.24.0/22	ISP Alliance a.s.	1,024
185.97.24.0/24	ISP Alliance a.s.	256
185.97.25.0/24	STEN.cz s.r.o.	256
185.97.26.0/24	STEN.cz s.r.o.	256
185.188.100.0/24	Tlapnet s.r.o.	256
185.188.101.0/24	Tlapnet s.r.o.	256
185.188.103.0/24	Tlapnet s.r.o.	256
185.230.172.0/22	Jiri Tlapak	1,024
185.243.172.0/22	Jiri Tlapak	1,024
213.108.162.0/23	ISP Alliance a.s.	512
213.108.162.0/24	ISP Alliance a.s.	256
2a03:d840::/32	ISP Alliance a.s.	7.92 × 10²⁸
2a03:d840:fe02::/48	ISP Alliance a.s.	1.21 × 10²⁴
2a04:c740::/29	ISP Alliance a.s.	6.34 × 10²⁹
2a04:f940::/29	ISP Alliance a.s.	6.34 × 10²⁹
2a05:aa00::/29	Jiri Tlapak	6.34 × 10²⁹
2a0a:10c0::/29	ISP Alliance a.s.	6.34 × 10²⁹
2a0d:1880::/29	Jiri Tlapak	6.34 × 10²⁹
2a0f:9300::/29	ISP Alliance a.s.	6.34 × 10²⁹
2a0f:fec0::/29	Jiri Tlapak	6.34 × 10²⁹

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS204666

0 peers

AS204666 has no peers recorded.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS204666

2 upstreams

AS16019 AS47232

AS204666 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS204666 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS204666

1 downstreams

AS197412

AS204666 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.