AS6500 — NEXUS-22-6500

AS6500 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

NEXUS-22-6500 belongs to Nexusguard, a DDoS mitigation and traffic-scrubbing provider that sells attack protection to communications service providers and enterprises. The low AS number is not an early-internet artifact: ARIN registered it to Nexusguard in December 2015.

What it's used for

• Security infrastructure rather than general connectivity. The AS originates a single ARIN-allocated /24 (netname NXG-US), consistent with scrubbing-centre and service addressing rather than a customer-hosting footprint.

Notable

• Nexusguard's US entity is registered in San Francisco, but the company's operations are substantially Asia-Pacific. Treat the ARIN country as a registration fact, not a statement about where the traffic is handled.
• Both the organisation record and the ASN record date to 2015, which is the pairing that actually establishes a reissue. A modern org record alone would not.

Interesting

• AS6500 sits immediately below a run of genuine mid-1990s ARIN allocations (AS6501 onward), which is a useful reminder that adjacency in AS-number space says nothing about allocation date.

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

Announced prefixes

• 199.166.236.0/24

Upstream networks

• AS45474 Nexusguard Pte. Ltd.

Adjacent networks

• AS45474 Nexusguard Pte. Ltd.

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 1 route objects.
• Listed in as-sets: AS-10099, AS-CTBC-TOOLS-7, AS-NEXUSGUARD, AS-NIELSEN, AS45474:AS-CONE, AS45474:AS-NEXUSGUARD.