206208 looking glass

AS7539 National Center for High-performance Computing 🇹🇼 TW

National Applied Research Laboratories. Announcing 15 prefixes, seen at the RIS collectors.

IPv4 prefixes
14
90,112 (352 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
4
transit providers observed
Peers
4
settlement-free adjacencies
Downstreams
10
transit customers observed
Customer cone
10
ASes reachable through it

Registry and operator data

AS number
AS7539
Name
National Center for High-performance Computing
Organisation
TaiWan Advanced Research and Education Network(TWAREN)
Country
🇹🇼 TW
RIR
APNIC
Allocated
1997-03-22
Network type
Educational/Research
Traffic levels
5-10Gbps
Scope
Asia Pacific
Peering policy
Open
IRR as-set
AS7539:AS-TWAREN
Website
http://www.twaren.net/english/
PeeringDB
net/16281
Exchanges
3

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

14 valid (93.3%) 1 invalid (6.7%) 0 no ROA (0.0%)

Announced prefixes

15 in total

Prefix RPKI Peers Sample path First seen
103.124.72.0/22 v4 RPKI valid 43 244827539 2026-09-18
103.124.72.0/24 v4 RPKI valid 3 382292385592647539 2026-09-18
103.124.73.0/24 v4 RPKI valid 3 382292385592647539 2026-09-18
103.160.220.0/23 v4 RPKI valid 3 333311037539 2026-09-18
120.101.64.0/22 v4 RPKI invalid 1 382292385592647539 2026-09-18
140.110.0.0/16 v4 RPKI valid 43 244827539 2026-09-18
140.110.200.0/21 v4 RPKI valid 42 3800199247539 2026-09-18
140.110.215.0/24 v4 RPKI valid 41 3800199247539 2026-09-18
203.145.200.0/21 v4 RPKI valid 43 244827539 2026-09-18
203.145.208.0/20 v4 RPKI valid 43 244827539 2026-09-18
211.73.64.0/19 v4 RPKI valid 43 244827539 2026-09-18
211.73.68.0/23 v4 RPKI valid 3 382292385592647539 2026-09-18
211.73.72.0/24 v4 RPKI valid 3 382292385592647539 2026-09-18
211.79.48.0/20 v4 RPKI valid 43 244827539 2026-09-18
2001:e10::/32 v6 RPKI valid 39 244827539 2026-09-18