AS43542

Summary

Country	Czechia
Organization	Optonet Communication, Spol. S.R.O.
Domain	optonet.cz
Number of IPv4	9,216
Number of IPv6	7.9228× 1028
AS Type	ISP
Registry	RIPE NCC
Allocated	August 20, 2007 (about 17 years ago)
Updated	June 07, 2024 (about 10 months ago)

IP Ranges

AS43542 announces 2 IPv4 ranges and 1 IPv6 range.

That's a total of 9,216 IPv4 addresses and 7.9228× 10²⁸ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
78.156.128.0/19	Optonet Infrastructure Routed Network	8,192	RIPE NCC	ASSIGNED PA
185.85.92.0/22	Optonet Communication, Spol. S.R.O.	1,024	RIPE NCC	ALLOCATED PA

Prefix	Organization	Size	Registry	Status
2a00:d940::/32	Optonet Communication, Spol. S.R.O.	7.9228× 1028	RIPE NCC	ALLOCATED-BY-RIR

Peers

AS43542 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.

Upstreams

AS43542 connects to the global Internet via at least 3 upstream providers. In this setup, AS43542 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS43542 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS43542's role in extending Internet access beyond its own infrastructure.