AS1561
No prefixes for this AS number were observed in the RouteViews RIB.
Summary
- // analyst note
- One combined observation across route-views2 and route-views6 at 2026-11-06T20:00:00.000Z; AS1554 is an observed AS_PATH neighbour, not a verified peer or upstream.
About this ASN.
AS1561’s registered organization and operational identity are unknown from the supplied evidence. In the combined Route Views observation at 2026-11-06 20:00 UTC, route-views2 and route-views6 recorded 8 IPv4 prefixes, an estimated 65,792 IPv4 addresses, and 0 IPv6 prefixes. This is a timestamped routing snapshot, not proof of current status beyond that observation.
The snapshot recorded one AS_PATH neighbour, AS1554. This adjacency does not establish a verified peering session, an upstream relationship, or a customer relationship. The IANA number block lists AS1561 within resource 1-1876 as assigned by ARIN; that identifies the allocating RIR for the block, not an individual assignment record or operator.
For identification, compare the observed prefixes and paths with a newer routing snapshot and independently sourced registry or first-party records that explicitly connect an organization to AS1561. Treat the zero IPv6 count as no IPv6 prefixes observed in this combined snapshot, not evidence that the ASN is inactive or has never announced IPv6. The supplied material contains no operator-linked products, website, location, or security findings.
- Identity
- Operator and organization are unknown from the supplied evidence.
- Routing snapshot
- 8 IPv4 prefixes and 0 IPv6 prefixes observed at 2026-11-06 20:00 UTC across the combined route-views2 and route-views6 observation.
- Triage
- One AS_PATH neighbour, AS1554; this does not verify peering or a commercial relationship.
- Operator
- Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Network & routing
- Routing observation
- 8 IPv4 prefixes, 65,792 estimated IPv4 addresses, 0 IPv6 prefixes [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- Observation scope
- combined RouteViews snapshot at 2026-11-06T20:00:00.000Z; route-views2, route-views6 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- ASN
- 1561 [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
- AS_PATH neighbour sample
- AS1554 [Confirmed] — https://archive.routeviews.org/route-views6/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2