Autonomous system detail

AS1623

Not announced

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

Summary

// analyst note
No IPv4 or IPv6 prefixes or AS_PATH neighbours were observed in the combined route-views2 and route-views6 snapshot at 2026-11-06T20:00:00.000Z; absence in this snapshot does not establish inactivity 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

AS1623 is an ASN with unknown operator and registry identity; the combined Route Views snapshot observed no IPv4 or IPv6 prefixes for it at 2026-11-06 20:00 UTC. This is a dated routing observation, not evidence that the ASN is dormant, inactive, or unsafe. The snapshot combines route-views2 and route-views6, so its zero counts describe their combined observation at that time.

The IANA number registry places AS1623 in the resource block 1–1876 and identifies ARIN as the allocating regional registry. That block-level assignment does not identify an individual holder, country, or current operator. No first-party material here links an organization, product, or website to AS1623.

For triage, treat this snapshot as showing no observed routed footprint in the two named collectors at the stated timestamp. If investigating a specific address or claimed network, compare its current route and origin ASN with additional collectors and a fresh observation, then seek an authoritative organization record explicitly connecting that organization to AS1623. Do not infer a relationship from the block allocation or the zero snapshot alone.

Identity
Operator and individual ASN holder are Unknown from the supplied evidence.
Routing snapshot
Zero IPv4 prefixes, zero IPv6 prefixes, zero estimated IPv4 addresses, and zero observed AS_PATH neighbours in the combined observation at 2026-11-06 20:00 UTC across route-views2 and route-views6.
Triage
No routes were observed in that snapshot; this does not establish inactivity, dormancy, or safety.
ASN
1623 [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 [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Observed at
2026-11-06T20:00:00.000Z, combined across route-views2 and route-views6 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
IPv4 prefix count
0 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
IPv4 address estimate
0 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
IPv6 prefix count
0 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
Observed AS_PATH neighbour count
0 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
Observed AS_PATH neighbours
None observed [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.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.