AS19226 — AURA-SOUTH

AS19226 announces 8 IPv4 prefixes covering 65,280 addresses and 0 IPv6 prefixes.

About this network

AURA-SOUTH is the autonomous system for NSF NOIRLab, the National Optical-Infrared Astronomy Research Laboratory.

What it's used for

• The address space carries infrastructure for the National Optical-Infrared Astronomy Research Laboratory, with all prefixes registered under the netname CTIO (Cerro Tololo Inter-American Observatory).
• The AS announces 65,280 IPv4 addresses across 8 prefixes and maintains only 2 observed neighbours, indicating a dedicated research network rather than a transit or access provider.

Notable

• All registrants for the announced prefixes are listed as NSF'S NOIRLAB, consistent with the AS holder.
• NOIRLab was formed in 2019 through the merger of the Association of Universities for Research in Astronomy (AURA) and the National Optical Astronomy Observatory (NOAO).
• The inventory consists of a single contiguous block within 139.229.0.0/16, subdivided into eight prefixes ranging from /17 to /24.

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

Announced prefixes

• 139.229.0.0/17
• 139.229.128.0/22
• 139.229.133.0/24
• 139.229.134.0/23
• 139.229.136.0/21
• 139.229.144.0/20
• 139.229.160.0/19
• 139.229.192.0/18

Upstream networks

• AS20080 Florida International University

Adjacent networks

• AS20080 Florida International University