AS43153

Summary

Country	Poland
Organization	Sferanet Sp. Z O.O.
Domain	sferanet.pl
Number of IPv4	3,584
Number of IPv6	1.8447× 1019
AS Type	ISP
Registry	RIPE NCC
Allocated	June 14, 2007 (about 18 years ago)
Updated	August 13, 2025 (about 2 months ago)

IP Ranges

AS43153 announces 6 IPv4 ranges and 1 IPv6 range.

That's a total of 3,584 IPv4 addresses and 1.8447× 10¹⁹ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
85.219.208.0/23	Sferanet S.A. Connected by T-mobile Polska S.A.	512	RIPE NCC	ASSIGNED PA
91.192.196.0/22	Sferanet Sp. Z O.O.	1,024	RIPE NCC	ASSIGNED PI
91.215.32.0/22	Sferanet Sp. Z O.O.	1,024	RIPE NCC	ASSIGNED PI
193.200.82.0/23	Sferanet Sp. Z O.O.	512	RIPE NCC	ASSIGNED PI
195.136.160.0/24	SFERANET-NET	256	RIPE NCC	ASSIGNED PA
195.136.161.0/24	SFERANET-NET	256	RIPE NCC	ASSIGNED PA

Prefix	Organization	Size	Registry	Status
2a10:f781:10:2051::/64	EPIX-LORA	1.8447× 1019	RIPE NCC	ALLOCATED-BY-LIR

Peers

AS43153 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

AS43153 connects to the global Internet via at least 5 upstream providers. In this setup, AS43153 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS43153 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS43153's role in extending Internet access beyond its own infrastructure.