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AS numbers

AS18043 Department of Education, Hsinchu City

AS18043 is operated by Department of Education, Hsinchu City and registered with APNIC (TW) since 2001-11-09.

It announces 10 IPv4 and 2 IPv6 prefixes, 100% of them RPKI valid.

RIPE RIS sees 1 upstream and peer networks and 0 downstream networks next to it.

PeeringDB lists it as an Educational/Research network at 1 internet exchange. Its peering policy is open.

NameDepartment of Education, Hsinchu City
Registry handleHCCG-AS
Registry (RIR)APNIC
CountryTaiwan (TW)
Delegated on2001-11-09
Network typeEducational/Research, Not Disclosed
Peering policyOpen
IRR as-setAPNIC::AS18043:AS-HGGC
Prefixes (IPv4 / IPv6)10 / 2
RPKI valid100% (12 / 12)
Upstreams and peers1
Downstream networks0
Websitehc.edu.tw

Routing health

  • AS18043 announces 10 IPv4 and 2 IPv6 prefixes.
  • All 12 announced prefixes are RPKI valid.
  • One upstream or peer seen (AS6939): an outage there takes the whole network off the internet.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 12

  • 120.104.0.0/19
  • 120.104.32.0/21
  • 120.104.64.0/19
  • 120.104.96.0/20
  • 144.79.66.0/23
  • 163.19.104.0/21
  • 163.19.112.0/20
  • 163.19.128.0/20
  • 163.19.144.0/21
  • 163.28.69.0/24
  • 2001:288:4200::/39
  • 2402:3ce0::/32

Upstreams and peers 1

The networks RIPE RIS sees next to AS18043 in BGP paths, the most visible first.

Peering

Peering policy: Open. Suggested max-prefix limits: 50 IPv4, 100 IPv6. PeeringDB record

Internet exchanges 1
ExchangePortsSpeedRoute server
FOX220GYes

More about AS18043

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-15 13:26 UTC. The country is where the AS number was registered, not necessarily where the network operates.