AS32361 — ULTRALIGHT

AS32361 announces 4 IPv4 prefixes covering 1,026 addresses and 3 IPv6 prefixes.

About this network

ULTRALIGHT is the AS handle for UltraLight, a US-based operator.

What it's used for

• The space carries mixed infrastructure, including leased datacenter capacity and a small WAN segment, evidenced by netnames CL-260 (CyrusOne LLC) and ULTRALIGHT-WAN-01 (UltraLight).
• With 1026 IPv4 addresses and 20 IPv6 prefixes announced against only 3 observed neighbours, the ratio suggests a small-scale business or internal network rather than a transit provider.

Notable

• Registrants do not fully agree with the announcer; the largest prefixes are registered to CyrusOne LLC and CENIC, while the smallest is registered to UltraLight.
• The address inventory is fragmented, consisting of two /24s and a /23 from CyrusOne, a /24 from UltraLight, and a /31 from CENIC, indicating a collection of leased or acquired blocks rather than a contiguous native allocation.

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

Announced prefixes

• 137.164.23.32/31
• 192.84.86.0/24
• 198.32.43.0/24
• 198.32.44.0/23
• 2605:d9c0::/32
• 2607:f380:1::118:9a41:7200/123
• 2607:f380:a4f::/48

Upstream networks

• AS2152 CENIC
• AS2153 CENIC
• AS7575 Australian Academic and Research Network (AARNet)

Adjacent networks

• AS2152 CENIC
• AS2153 CENIC
• AS7575 Australian Academic and Research Network (AARNet)