AS1580
No prefixes for this AS number were observed in the RouteViews RIB.
Summary
- // analyst note
- Counts are the combined observation from route-views2 and route-views6 at 2026-11-06 20:00 UTC. AS1554 is an observed AS_PATH neighbour, not a verified peer or upstream.
About this ASN.
AS1580 is an autonomous system number in the IANA block assigned by ARIN. In the combined Route Views observation dated 2026-11-06 20:00 UTC, four IPv4 prefixes and no IPv6 prefixes were visible. This is a snapshot of routing visibility, not evidence of the ASN’s operator, current deployment, or activity outside the named collectors.
The snapshot estimates 131,584 IPv4 addresses across the observed prefixes. It records one AS_PATH neighbour, AS1554. That adjacency does not establish a verified peering session or an upstream, customer, or provider relationship. The observation combines route-views2 and route-views6; the aggregate counts should be read jointly, not as separate counts from each collector.
For identification, compare the relevant prefix and AS_PATH against other dated routing observations and consult authoritative organization records before associating AS1580 with an operator or product. Check both IPv4 and IPv6 separately: zero IPv6 prefixes were observed in this snapshot, which does not prove that none are announced at other times or elsewhere. Treat the RIR value as the allocating registry for the IANA block, not as an individual assignment record.
- Observed routing
- Four IPv4 prefixes and zero IPv6 prefixes were visible in the combined route-views2 and route-views6 observation at 2026-11-06 20:00 UTC.
- Triage status
- Routing is observed in this snapshot; operator identity and security status are unknown.
- AS_PATH neighbour
- AS1554 is the sole sampled neighbour; this does not verify a peer or upstream relationship.
- Operator
- Unknown
- Country
- Unknown
- Website
- Unknown
Security context
Unknown
Network & routing
- Network type
- Unknown
- 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
- 1580 [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
- IPv4 prefixes observed
- 4 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- IPv4 address estimate
- 131584 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- IPv6 prefixes observed
- 0 [Confirmed] — https://archive.routeviews.org/route-views6/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- AS_PATH neighbour sample
- AS1554 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- Organization status
- Unknown