All ASNs

Autonomous System details for AS7539

AS7539

National Center for High-performance Computing • twaren.net

AS7539 — National Center for High-performance Computing

AS Name

TWAREN-TW

Country

Taiwan (TW)

Website

twaren.net

Number of IPv4

89,344

Number of IPv6

7.92 × 10²⁸

ASN type

Education

Status

Allocated

Registry

APNIC

Allocated

March 22, 1997

Last updated

November 06, 2025

IP Ranges

12 IPv4 prefixes, 1 IPv6 prefixes

Prefix	Company	Number of IPs
103.124.72.0/22	National Applied Research Laboratories	1,024
103.160.220.0/23	National Applied Research Laboratories National Center for High-performance Computing	512
103.160.220.0/24	National Applied Research Laboratories National Center for High-performance Computing	256
120.101.64.0/22	Fo Guang University	1,024
140.110.0.0/16	National Center for High-Performance Computing	65,536
140.110.200.0/21	National Center for High-Performance Computing	2,048
140.110.215.0/24	National Center for High-Performance Computing	256
203.145.200.0/21	Water Resources Agency, Ministry of Economic Affairs	2,048
203.145.208.0/20	Fo Guang University	4,096
211.73.64.0/19	National Center for High-Performance Computing	8,192
211.73.72.0/24	National Center for High-Performance Computing	256
211.79.48.0/20	National Center for High-performance Computing	4,096
2001:e10::/32	Taiwan Advanced Research and Education	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 AS7539

14 peers

AS293 AS1103 AS2153 AS6939 AS7575 AS7713 AS11537 AS18420 AS22335 AS38254 AS137409 AS10764 AS24482 AS55720

AS7539 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 AS7539

3 upstreams

AS6461 AS9264 AS9924

AS7539 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS7539 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS7539

9 downstreams

AS1659 AS17711 AS17716 AS17717 AS18047 AS18181 AS18183 AS18422 AS18426

AS7539 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.