AS173

Summary

Country	Japan
Organization	Nippon Telegraph And Telephone Corporation
Domain	ntt.com
Number of IPv4	8,704
Number of IPv6	0
AS Type	Business
Registry	APNIC
Allocated	July 31, 2002 (about 23 years ago)
Updated	January 11, 2023 (about 2 years ago)

IP Ranges

AS173 announces 2 IPv4 ranges and 0 IPv6 range.

That's a total of 8,704 IPv4 address and 0 IPv6 address.

Prefix	Organization	Size	Registry	Status
163.138.160.0/19	Nippon Telegraph And Telephone Corporation	8,192	APNIC	ALLOCATED PORTABLE
192.47.168.0/23	Nippon Telegraph And Telephone Corporation	512	APNIC	ASSIGNED NON-PORTABLE

Peers

AS173 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

AS173 connects to the global Internet via at least 2 upstream providers. In this setup, AS173 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS173 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS173's role in extending Internet access beyond its own infrastructure.