Autonomous system detail

AS1156

Not announced

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

Summary

// analyst note
No prefixes or AS_PATH neighbours were observed in the combined Route Views snapshot at 2026-11-03 14:00 UTC across route-views2 and route-views6. This single observation does not establish inactivity or identity.
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

AS1156 is an ASN in the IANA range assigned by ARIN; its operator and operational identity are unknown from the supplied evidence. In the combined Route Views observation at 2026-11-03 14:00 UTC, across route-views2 and route-views6, no IPv4 or IPv6 prefixes, routed IPv4 addresses, or AS_PATH neighbours were observed. This is a snapshot result, not proof that the ASN is dormant or inactive.

The registry evidence identifies ARIN as the allocating regional internet registry for the encompassing range. It does not identify an individual assignment, organization, country, network type, or website. The routing evidence likewise cannot establish ownership, service use, traffic prevalence, or security status.

For identification, compare a fresh multi-vantage routing view with this timestamp and check authoritative assignment records before associating the ASN with an organization. If investigating a specific address or route, verify the exact prefix and origin ASN independently; the zero-prefix snapshot alone cannot establish whether a suspected route was announced at another time or vantage point.

Routing snapshot
Zero IPv4 and IPv6 prefixes were observed in the combined snapshot at 2026-11-03 14:00 UTC across route-views2 and route-views6.
Neighbours
Zero AS_PATH neighbours were observed in that combined snapshot; this does not establish commercial peer or provider relationships.
Security
Unknown. The supplied evidence contains no security findings.
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

Security status

Unknown

[Unknown] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2

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
1156 [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 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-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
Peers sample
Empty [Confirmed] — https://archive.routeviews.org/route-views6/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.