AS1578
No prefixes for this AS number were observed in the RouteViews RIB.
Summary
- // analyst note
- Combined RouteViews observation across route-views2 and route-views6 at 2026-11-06T20:00:00.000Z; zero routes and neighbours observed in this snapshot do not establish inactivity or ownership.
About this ASN.
AS1578 is an ASN whose allocating RIR is listed as ARIN; its operator and deployment status are unknown. In the combined RouteViews observation at 2026-11-06 20:00 UTC, across route-views2 and route-views6, no IPv4 or IPv6 prefixes, addresses, or AS_PATH neighbours were observed. This snapshot does not establish whether the ASN is inactive or who controls it.
The IANA number registry places AS1578 within resource range 1-1876 and describes that range as assigned by ARIN. This identifies the registry block’s allocating RIR, not an individual assignment record or an operator. The available evidence provides no verified country, network type, official website, or organizational status for this ASN.
For identification, compare the ASN against a newer routing snapshot and consult authoritative registry records for an explicit assignment linking it to an organization. If investigating a particular address or route, check its current origin and route history directly; the zero counts here only describe the named collectors at the stated timestamp. No security or reputation finding can be drawn from this routing observation.
- Routing observation
- Zero IPv4 prefixes, IPv6 prefixes, estimated IPv4 addresses, and AS_PATH neighbours were observed in the combined RouteViews snapshot at 2026-11-06 20:00 UTC across route-views2 and route-views6.
- Triage
- This single observation does not establish inactivity, ownership, legitimacy, or safety.
- Operator
- Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
- Country
- Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Network & routing
- Routing snapshot
- Zero observed IPv4 and IPv6 prefixes and zero AS_PATH neighbours in the combined observation at 2026-11-06 20:00 UTC, across route-views2 and route-views6 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- ASN
- 1578 [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
- Allocating RIR
- ARIN [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
- IANA resource range
- 1-1876 [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv