Autonomous system detail

AS1238

Not announced

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

Summary

// analyst note
Routing counts are the combined observation across route-views2 and route-views6, not separate per-collector counts. No operator identity is established.
// security note
A zero-route, zero-neighbour observation is limited to the combined Route Views snapshot at 2026-11-03 14:00 UTC; it establishes no security status.
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

AS1238 is listed in IANA’s 1–1876 block as assigned by ARIN; the combined Route Views snapshot observed no IPv4 or IPv6 prefixes for it at 2026-11-03 14:00 UTC. The evidence does not identify an operator, country, or deployed network, so the snapshot does not establish who uses the ASN or whether it is active outside these observations.

Across route-views2 and route-views6 together, the projection recorded zero IPv4 prefixes, zero IPv6 prefixes, zero estimated IPv4 addresses, and zero AS_PATH neighbours. These are combined counts for that timestamp, not separate counts for each collector. The empty neighbour sample provides no observed adjacent ASNs to investigate from this snapshot.

For identification, treat AS1238 as an unobserved ASN in this particular routing view, not as proof of a dormant assignment or a negative security finding. If investigating a claimed connection, compare its announcement and origin details with a newer routing snapshot and seek first-party documentation that explicitly links an organization to AS1238. The supplied evidence supports the registry block and snapshot counts only.

Routing observation
Zero IPv4 and IPv6 prefixes were observed in the combined snapshot at 2026-11-03 14:00 UTC across route-views2 and route-views6.
Triage
No AS_PATH neighbours were observed in that snapshot; this does not establish inactivity or a security status.
RIR
ARIN, the allocating RIR shown for IANA resource 1–1876 [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
ASN
1238 [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
IPv4 prefixes
0 in the combined observation at 2026-11-03 14:00 UTC [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
IPv4 address estimate
0 in the combined observation at 2026-11-03 14:00 UTC [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
IPv6 prefixes
0 in the combined observation at 2026-11-03 14:00 UTC [Confirmed] — https://archive.routeviews.org/route-views6/bgpdata/2026.11/RIBS/rib.20261103.1400.bz2
AS_PATH neighbours
0 observed; sample empty [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.