Autonomous system detail

AS1531

Not announced

No prefixes for this AS number were observed in the RouteViews RIB.

Summary

// analyst note
Routing counts are combined observations from route-views2 and route-views6 at 2026-11-03T14:00:00Z; zero observed does not establish inactivity.
// security note
No security findings supplied; zero routes and peers were observed in the combined Route Views snapshot at 2026-11-03 14:00 UTC.
IPv4 prefixes
0
~0 addresses
IPv6 prefixes
0
—
Peer networks
0
0 up · 0 down
IANA block
1-1876
Assigned by ARIN
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: Low  ·  3 sources  ·  How this page is checked

AS1531 is an ASN in the IANA range assigned by ARIN; its operator and purpose are Unknown. The combined Route Views observation recorded zero IPv4 prefixes, zero IPv6 prefixes, and zero peers for AS1531 at 2026-11-03 14:00 UTC, across route-views2 and route-views6. This is a snapshot result, not proof that the ASN is dormant or inactive.

The IANA evidence identifies ARIN as the allocating RIR for the encompassing ASN block. It does not identify an individual assignee, country, organization, network type, or website for AS1531. No AS_PATH neighbour was present in the supplied sample, so there are no observed neighbours to name; this does not establish anything about commercial relationships.

For triage, compare later snapshots and additional collectors to determine whether announcements appear over time. If investigating a particular IP address, first establish its current origin from routing data and seek a matching authoritative registry record. Do not infer ownership or safety from this ASN number or its block-level RIR designation.

Routing snapshot
Zero IPv4 prefixes, zero IPv6 prefixes, and zero peers observed in the combined route-views2 and route-views6 observation at 2026-11-03 14:00 UTC.
Triage
No live announcement was observed in this snapshot; the observation alone does not establish dormancy or inactivity.
Security
No security findings are supplied. Treat ownership, legitimacy, and safety as Unknown.
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
Website
Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv

Network & routing

Network type
Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Observation scope
combined RouteViews snapshot at 2026-11-03T14:00:00.000Z; route-views2, route-views6 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
ASN
1531 [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
0 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
IPv4 address estimate
0 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
IPv6 prefixes observed
0 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
AS_PATH neighbours observed
0 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
[ 02 ] — Announced prefixes

What this network routes.

0 prefixes total · as observed by RouteViews at 2026-11-06 · one collector view, not a global census
// IPv4 prefixes0
No IPv4 prefixes announced.
// IPv6 prefixes0
No IPv6 prefixes announced.
[ 03 ] — Notable peers & upstreams

Who it talks to.

0 observed neighbours
Neighbour data unavailable from public BGP collectors.