AS899

AS899 is a small, actively routed stub network registered under ARIN; no permitted source confirms who operates it. As observed by the RouteViews route collector on 2026-08-20, it originates exactly one IPv4 prefix (a /24, 256 addresses) and one IPv6 prefix, with a single observed neighboring ASN — a footprint consistent with a small network riding one upstream connection rather than operating its own transit backbone.

Relationship direction comes from a separate dataset on a different day. The CAIDA AS Relationships cache (dataset date 2026-08-01) classifies AS899's single observed neighbor, AS20473, as a provider — meaning AS20473 is AS899's sole inferred upstream. This is an inference drawn from observed AS paths, not a disclosed peering agreement, and it is a floor: only the one RouteViews-observed neighbor could be checked against CAIDA's data at all.

Several fields a routing-registry lookup would normally supply remain Unknown as of 2026-08: this ASN's operator, country, and net name; its allocation date; its administrative assignment class beyond the IANA block-level "Assigned by ARIN" description; RPKI validation posture; exchange-point presence; and abuse contacts. The routing figures above reflect a single collector's snapshot, not a registry-declared allocation size or a confirmed operator identity.

Abuse signal

No notable public abuse signal found for AS899 as of August 2026, per searches of Spamhaus's general blocklist pages and its ASN-DROP list — spamhaus.org/blocklists/, spamhaus.org/drop/asndrop.txt.

Operator

Unknown — no permitted source binds AS899 to an operator [Unknown]

Country / RIR

Country Unknown — no permitted source names a jurisdiction for this ASN [Unknown]. RIR: ARIN, per the IANA AS Numbers registry block covering this ASN [Confirmed] — the IANA Autonomous System Number registry (1-1876,Assigned by ARIN)

Allocated

Unknown [Unknown]

Org status

Unknown — no permitted source describes this ASN's operating organization independently of the unconfirmed operator candidate [Unknown]

Contacts

Unknown [Unknown]

Security/abuse context (NEUTRAL, DATED)

see the Security section above for abuse-signal, community, and CVE/malware checks as of an August 2026 search

Network & routing

Network type

Unknown — no permitted source describes this ASN's network type independently of the unconfirmed operator candidate [Unknown]

Size

1 IPv4 prefix and 1 IPv6 prefix originated; an estimated 256 IPv4 addresses (a single /24), as observed by RouteViews on 2026-08-20 [Confirmed] — the RouteViews BGP routing data (CC BY 4.0) AS899

Routing/peering

1 observed neighboring ASN (AS20473) at the RouteViews collector on 2026-08-20 — no sample truncation, the 32-entry cap did not engage. Relationship direction comes separately from the CAIDA AS Relationships cache (dataset date 2026-08-01, CAIDA Public AUA), which classifies that single neighbor as AS899's provider (1 provider, 0 customers, 0 peers among published neighbours). This is a CAIDA inference from observed AS paths, not a disclosed peering agreement, and a floor: only the one RouteViews-observed neighbor could be checked at all. Peering policy: Unknown — no permitted source found [Confirmed for the neighbor count and CAIDA classification; Unknown for policy] — the RouteViews BGP routing data (CC BY 4.0) AS899, the cached registry snapshots/caida-as-rel.csv (20473,899,customer)

RPKI

Unknown — an unevaluated status, not a report of an absent or invalid ROA [Unknown]

Notable usage

Unknown — no permitted source describes this ASN's notable usage independently of the unconfirmed operator candidate [Unknown]

Related ASNs

AS20473 — CAIDA-inferred sole upstream provider to AS899, and its only RouteViews-observed neighbor; AS20473's own identity was not independently researched here [Confirmed for the relationship classification] — the cached registry snapshots/caida-as-rel.csv (20473,899,customer)

Related fields

AS rank, customer cone size, and assignment class are all Unknown — the IANA AS Numbers registry names only the block-level administrator (ARIN) for this range, not a per-ASN assignment class [Unknown]

Analyst note

Small, actively routed stub ASN whose operator cannot be confirmed from any permitted source. RouteViews observed 1 IPv4 prefix (a single /24, 256 addresses) and 1 IPv6 prefix on 2026-08-20, with exactly one observed neighbor, AS20473. CAIDA (dataset date 2026-08-01, a separate observation from the RouteViews snapshot) classifies that neighbor as AS899's sole inferred upstream provider — an inference from observed AS paths, not a disclosed peering agreement, and a floor since only the single observed neighbor could be checked at all. Allocation date, country, net name, per-ASN assignment class, RPKI status, IX presence, and abuse contacts are Unknown.