Autonomous system detail

AS1231

Not announced

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

Summary

// analyst note
The combined snapshot observed no prefixes or AS_PATH neighbours at 2026-11-03 14:00 UTC across route-views2 and route-views6; this does not establish inactivity, ownership, or safety.
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

AS1231’s operator and registered organization are unknown from the supplied evidence, and it announced no IPv4 or IPv6 prefixes in the combined Route Views observation at 2026-11-03 14:00 UTC. That snapshot covered route-views2 and route-views6 together; it does not establish that the ASN is inactive or unused at other times or in other networks.

IANA lists AS1231 in the resource block 1–1876 as assigned by ARIN. This identifies the allocating regional registry, not an individual assignment record, organization, country, or present-day operator. The available material supplies no first-party evidence linking an organization, product, or website to this ASN.

For identification, compare the ASN and observation time with a newer routing snapshot and check the relevant registry assignment record or operator’s own documentation. Treat any later route as evidence of an observed announcement at that time; investigate its origin and path separately. The current zero counts are useful for snapshot triage, but cannot establish ownership, safety, or historical use.

Identity
Operator and organization are Unknown from the supplied evidence.
Routing snapshot
Zero IPv4 prefixes, zero IPv6 prefixes, and zero observed AS_PATH neighbours in the combined observation at 2026-11-03 14:00 UTC across route-views2 and route-views6.
Triage
No routes were observed in that snapshot; this does not establish inactivity or safety.
Operator
Unknown [Unknown]
Country
Unknown [Unknown]
Website
Unknown [Unknown]

Network & routing

Routing observation
2026-11-03 14:00 UTC, combined across route-views2 and route-views6 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
ASN
1231 [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
IPv6 prefixes observed
0 [Confirmed] — https://archive.routeviews.org/route-views6/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
Observed AS_PATH neighbours
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.