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Autonomous System details for AS37891

AS37891
JR TOKAI Information Systems Company • jtis.co.jp

AS37891 — JR TOKAI Information Systems Company

AS Name
JTIS
Country
Japan (JP)
Website
Number of IPv4
3,840
Number of IPv6
0
ASN type
Business
Status
Allocated
Registry
APNIC
Allocated
January 30, 2006
Last updated
June 20, 2006

IP Ranges

8 IPv4 prefixes
Prefix Company Number of IPs
58.147.160.0/21 JR TOKAI Information Systems Company 2,048
58.147.162.0/24 JR TOKAI Information Systems Company 256
58.147.163.0/24 JR TOKAI Information Systems Company 256
58.147.165.0/24 JR TOKAI AGENCY CO.,LTD. 256
58.147.166.0/24 JR TOKAI Information Systems Company 256
58.147.167.0/24 JR TOKAI Information Systems Company 256
192.218.65.0/24 Central Japan Railway Company 256
192.218.66.0/24 Central Japan Railway Company 256

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 AS37891

0 peers

AS37891 has no peers recorded.

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 AS37891

3 upstreams

AS37891 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS37891 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS37891

0 downstreams

AS37891 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.

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