AS18183 — NCREE National Center for Research on Earthquake Engineering

AS18183 announces 3 IPv4 prefixes covering 5,632 addresses and 2 IPv6 prefixes.

About this network

NCREE is operated by the National Center for Research on Earthquake Engineering.

What it's used for

• The address space carries research and government infrastructure, evidenced by reverse DNS entries such as eqceoc.ncdr.nat.gov.tw and uavimage.ncdr.nat.gov.tw, alongside internal hostnames like hp440g6-16.ncree.org.
• With 5632 IPv4 addresses and 9 IPv6 prefixes announced against only 5 observed neighbours, the network functions as a dedicated institutional endpoint rather than a transit provider.

Notable

• Registrants for the largest prefixes are listed as unknown, though netnames GSN-NET and NCREE-NET align with the operator's identity and associated networks.
• The inventory is finely subdivided into seven IPv4 prefixes, including a large block at 61.56.8.0/21 and smaller segments like 61.56.4.0/24, reflecting internal site or functional segmentation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 61.56.0.0/20
• 103.189.132.0/23
• 202.5.12.0/22
• 2001:4500::/32
• 2400:85a0::/32

Upstream networks

• AS9264 Academia Sinica
• AS7539 National Center for High-performance Computing
• AS9505 Taiwan Internet Gateway
• AS9681 Formosa Open eXchange(FOX)

Downstream networks

• AS18426 National Applied Research Laboratories

Adjacent networks

• AS9264 Academia Sinica
• AS7539 National Center for High-performance Computing
• AS9505 Taiwan Internet Gateway
• AS9681 Formosa Open eXchange(FOX)
• AS18426 National Applied Research Laboratories