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Autonomous System details for AS37918

AS37918

NTT, Inc. • ntt.co.jp

AS37918 — NTT, Inc.

AS Name

ECL-INET

Country

Japan (JP)

Website

ntt.co.jp

Number of IPv4

136,448

Number of IPv6

1.21 × 10²⁴

ASN type

ISP

Status

Allocated

Registry

APNIC

Allocated

January 30, 2006

Last updated

December 20, 2025

IP Ranges

21 IPv4 prefixes, 1 IPv6 prefixes

Prefix	Company	Number of IPs
129.60.0.0/16	Nippon Telegraph and Telephone Corporation	65,536
129.60.0.0/17	Nippon Telegraph and Telephone Corporation	32,768
129.60.128.0/17	Nippon Telegraph and Telephone Corporation	32,768
192.68.235.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.236.0/23	Nippon Telegraph and Telephone Corporation	512
192.68.236.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.237.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.238.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.239.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.240.0/23	Nippon Telegraph and Telephone Corporation	512
192.68.240.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.241.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.242.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.243.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.244.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.245.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.246.0/23	Nippon Telegraph and Telephone Corporation	512
192.68.246.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.247.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.248.0/24	Nippon Telegraph and Telephone Corporation	256
192.68.249.0/24	Nippon Telegraph and Telephone Corporation	256
2001:df0:45::/48	Nippon Telegraph and Telephone Corporation	1.21 × 10²⁴

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 AS37918

10 peers

AS4775 AS6939 AS8966 AS9002 AS20485 AS24482 AS9370 AS17639 AS140627 AS49544

AS37918 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 AS37918

2 upstreams

AS2497 AS2907

AS37918 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS37918 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS37918

0 downstreams

AS37918 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.