All ASNs

Autonomous System details for AS17955

AS17955
Densan Co., Ltd. • jprs.jp

AS17955 — Densan Co., Ltd.

AS Name
AVISNET
Country
Japan (JP)
Website
Number of IPv4
43,520
Number of IPv6
7.92 × 1028
ASN type
ISP
Status
Allocated
Registry
APNIC
Allocated
September 21, 2001
Last updated
August 05, 2008

IP Ranges

11 IPv4 prefixes, 1 IPv6 prefixes
Prefix Company Number of IPs
103.152.138.0/23 Densan Co., Ltd. 512
120.88.16.0/20 DENSAN CO., LTD. 4,096
120.88.16.0/21 DENSAN CO., LTD. 2,048
120.88.24.0/21 Densan Co., Ltd. 2,048
192.47.64.0/21 Densan Co., Ltd. 2,048
202.247.192.0/18 DENSAN CO., LTD. 16,384
203.223.48.0/20 DENSAN CO., LTD. 4,096
203.223.48.0/21 DENSAN CO., LTD. 2,048
203.223.56.0/22 Densan Co., Ltd. 1,024
203.223.60.0/22 Densan Co., Ltd. 1,024
210.56.160.0/19 DENSAN CO., LTD. 8,192
2406:8000::/32 Densan Co., Ltd. 7.92 × 1028

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 AS17955

16 peers

AS17955 peers with these other Autonomous Systems.

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 AS17955

2 upstreams

AS17955 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS17955 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS17955

0 downstreams

AS17955 has no downstreams recorded.

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.

Our IP address tools

Explore all tools

What is my IP?

Discover your public IP address and detailed information about your connection.

CIDR to IP Range Converter (IPv4 and IPv6)

Convert CIDR notation to IP address ranges and vice versa. Useful for network configuration and security.

IP to Hostname/rDNS Lookup

Perform a reverse DNS (rDNS) lookup to get the hostname for an IP address.

IPv6 Expander/Collapser

Expand or collapse IPv6 addresses to their full or shortened forms for better readability and usage.