asn.dev

Autonomous system

AS6500 NEXUS-22-6500

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Nexusguard, Inc

United States · AI-generated

hosting legacy

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. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS45474Nexusguard Pte. Ltd.57

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS6500
Registry name
NEXUS-22-6500
Registrant
Nexusguard, Inc
Abuse contact
infra@nexusguard.com
Registered
2015-12-02
Last changed
2015-12-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS6500
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS6500

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,784 prefixes, as published 2026-10-19. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check