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Autonomous System details for AS4693

AS4693

CSK-IT MANAGEMENT CORPORATION • scsk.jp

AS4693 — CSK-IT MANAGEMENT CORPORATION

AS Name

CSK

Country

Japan (JP)

Website

scsk.jp

Number of IPv4

45,056

Number of IPv6

7.92 × 10²⁸

ASN type

ISP

Status

Allocated

Registry

APNIC

Allocated

August 30, 1995

Last updated

February 05, 2010

IP Ranges

7 IPv4 prefixes, 1 IPv6 prefixes

Prefix	Company	Number of IPs
203.140.0.0/19	SCSK Corporation	8,192
203.179.32.0/19	SCSK Corporation	8,192
210.159.96.0/19	SCSK Corporation	8,192
210.166.96.0/19	SCSK Corporation	8,192
210.249.192.0/19	CSK-IT MANAGEMENT CORPORATION	8,192
211.7.192.0/21	SCSK Corporation	2,048
211.7.208.0/21	Highway Internet (CSK NETWORK SYSTEMS CORP.)	2,048
2400:af80::/32	SCSK Corporation	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 AS4693

16 peers

AS2500 AS1828 AS2516 AS4775 AS4777 AS6939 AS8220 AS8966 AS17639 AS20485 AS23764 AS49544 AS59105 AS9002 AS18106 AS24482

AS4693 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 AS4693

2 upstreams

AS17676 AS17686

AS4693 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS4693 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS4693

1 downstreams

AS17680

AS4693 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.