AS1604
No prefixes for this AS number were observed in the RouteViews RIB.
Summary
- // analyst note
- One combined Route Views observation across route-views2 and route-views6 at 2026-11-06T20:00:00Z; AS577 is an observed AS_PATH neighbour, not a verified peer or upstream.
About this ASN.
AS1604 is an ASN assigned by ARIN; the available routing snapshot shows one IPv4 prefix and no IPv6 prefixes. This is a limited observation, not evidence of the ASN’s operator, deployment, or present-day activity beyond the recorded snapshot.
The combined Route Views observation is dated 2026-11-06 20:00 UTC and covers route-views2 and route-views6. It contains one IPv4 prefix, representing an estimated 256 IPv4 addresses, and zero IPv6 prefixes. The prefix count is the combined result across both collectors; it is not a separate count for each collector.
The observed AS_PATH neighbour is AS577. That adjacency does not establish a commercial peer, upstream, customer, or provider relationship. For identification, compare the ASN and observed prefix with the relevant routing record at the time under investigation, then consult authoritative operator records before attributing the network. This snapshot alone cannot establish ownership, location, legitimacy, or security status.
- Routing snapshot
- One IPv4 prefix and zero IPv6 prefixes were observed in the combined Route Views data at 2026-11-06 20:00 UTC.
- Observed neighbour
- AS577 appears as an AS_PATH neighbour; the observation does not verify a peering or upstream relationship.
- Triage
- Use timestamp-matched routing records to investigate a specific address or event, and seek authoritative operator evidence before attribution. No security finding is supplied.
- Operator
- Unknown
- Country
- Unknown
- Website
- 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
- 1604 [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
- Assignment class
- Unknown
- IPv4 prefixes observed
- 1 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- IPv4 address estimate
- 256 [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
- Observed AS_PATH neighbour count
- 1 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- Observed AS_PATH neighbour
- AS577 [Confirmed] — https://archive.routeviews.org/route-views6/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- Organization status
- Unknown