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	Z-Nett Public at Union	512
37.221.240.0/20	Plusnet GmbH Dynamic IP Addresses	4,096
37.221.241.0/24	Plusnet GmbH Dynamic IP Addresses	256
37.221.242.0/24	Plusnet GmbH Dynamic IP Addresses	256
37.221.243.0/24	Plusnet GmbH Dynamic IP Addresses	256
37.221.245.0/24	GibtelecomDynamicDSLPool	256
37.221.247.0/24	GibtelecomDynamicDSLPool	256
37.221.248.0/24	GibtelecomDynamicDSLPool	256
37.221.249.0/24	GibtelecomDynamicDSLPool	256
37.221.250.0/24	GibtelecomDynamicDSLPool	256
37.221.251.0/24	GibtelecomDynamicDSLPool	256
37.221.252.0/24	GibtelecomDynamicDSLPool	256
45.153.192.0/22	Plusnet GmbH Dynamic IP Addresses	1,024
45.153.192.0/24	Plusnet GmbH Dynamic IP Addresses	256
45.153.194.0/24	Coloplast A/S	256
45.153.195.0/24	Coloplast A/S	256
85.255.88.0/22	Plusnet GmbH Dynamic IP Addresses	1,024
91.224.90.0/23	Infonett Internet access network for customers in Brekken area, Roros, Norway	512
176.119.192.0/24	ASSOCIAZIONE LA NOSTRA FAMIGLIA public subnet	256
185.19.0.0/22	Plusnet GmbH Dynamic IP Addresses	1,024
185.64.220.0/22	Plusnet GmbH Dynamic IP Addresses	1,024
185.64.220.0/24	Plusnet GmbH Dynamic IP Addresses	256
185.64.222.0/24	GibtelecomDynamicDSLPool	256
185.74.60.0/24	Plusnet GmbH Dynamic IP Addresses	256
185.87.140.0/22	ASSOCIAZIONE LA NOSTRA FAMIGLIA public subnet	1,024
185.87.142.0/23	ASSOCIAZIONE LA NOSTRA FAMIGLIA public subnet	512
185.97.24.0/22	Plusnet GmbH Dynamic IP Addresses	1,024
185.97.24.0/24	Plusnet GmbH Dynamic IP Addresses	256
185.97.25.0/24	Orange Business Services	256
185.97.26.0/24	Orange Business Services	256
185.188.100.0/24	relaxt Webdienstleistungsagentur GmbH	256
185.188.101.0/24	relaxt Webdienstleistungsagentur GmbH	256
185.188.103.0/24	relaxt Webdienstleistungsagentur GmbH	256
185.230.172.0/22	ASSOCIAZIONE LA NOSTRA FAMIGLIA public subnet	1,024
185.243.172.0/22	Onnisys Oy	1,024
213.108.162.0/23	The Readershouse network	512
213.108.162.0/24	The Readershouse network	256
2a03:d840::/32	Plusnet GmbH Dynamic IP Addresses	7.92 × 10²⁸
2a03:d840:fe02::/48	Plusnet GmbH Dynamic IP Addresses	1.21 × 10²⁴
2a04:c740::/29	Plusnet GmbH Dynamic IP Addresses	6.34 × 10²⁹
2a04:f940::/29	Plusnet GmbH Dynamic IP Addresses	6.34 × 10²⁹
2a05:aa00::/29	ASSOCIAZIONE LA NOSTRA FAMIGLIA public subnet	6.34 × 10²⁹
2a0a:10c0::/29	Plusnet GmbH Dynamic IP Addresses	6.34 × 10²⁹
2a0d:1880::/29	Onnisys Oy	6.34 × 10²⁹
2a0f:9300::/29	Plusnet GmbH Dynamic IP Addresses	6.34 × 10²⁹
2a0f:fec0::/29	ASSOCIAZIONE LA NOSTRA FAMIGLIA public subnet	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.