Autonomous system detail

AS1633

Not announced

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

Summary

// analyst note
One combined observation from route-views2 and route-views6 at 2026-11-06T20:00:00.000Z; AS852 is an observed AS_PATH neighbour only.
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  ·  4 sources  ·  How this page is checked

AS1633 is an ASN with four IPv4 prefixes observed in the combined Route Views snapshot at 2026-11-06 20:00 UTC; its operator and deployment status are unknown. The snapshot contains no IPv6 prefixes and records one AS_PATH neighbour, AS852. These observations describe the named collectors and timestamp, not present-day activity or commercial relationships.

IANA’s supplied ASN block identifies the allocating RIR as ARIN and describes the range as assigned by ARIN. That block information does not identify an individual assignee or establish who operates AS1633. The observed IPv4 address estimate is 1,024; it is derived from the four prefixes in this snapshot and should not be read as an allocation record.

For triage, compare the observed routes and AS_PATH with a fresh routing view and registry records before attributing the ASN to an organization. Treat AS852 only as an observed path neighbour. This single combined observation cannot establish whether the routes are stable, who uses them, or whether the ASN is currently deployed. No specific website, product, or security finding is established by the supplied evidence.

Routing observation
Four IPv4 prefixes and zero IPv6 prefixes were observed in the combined Route Views snapshot at 2026-11-06 20:00 UTC.
Path neighbour
AS852 is the sole observed AS_PATH neighbour; this does not establish an upstream or commercial peer.
Triage
Compare routes and paths with a fresh view and registry records before making an attribution.
RIR
ARIN [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
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://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
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
1633 [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Assignment class
Unknown [Unknown] — 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
1024 [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 sample
AS852 [Confirmed] — https://archive.routeviews.org/route-views6/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
Organization status
Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
[ 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.