Autonomous system detail

AS1504

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 at 2026-11-03T14:00:00.000Z; zero observed does not establish inactivity.
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

AS1504 is an autonomous system number in IANA’s ARIN-allocated block; its operator and deployment status are unknown. In the combined RouteViews snapshot observed at 2026-11-03 14:00 UTC across route-views2 and route-views6, no IPv4 or IPv6 prefixes, estimated IPv4 addresses, or AS_PATH neighbours were observed for AS1504. This is a snapshot finding, not evidence that the ASN is dormant or inactive.

The available registry evidence identifies the allocating RIR as ARIN and places AS1504 in resource block 1-1876. It does not identify an individual assignee, operator, country, network type, or website. Registry allocation alone does not establish who uses the ASN or whether it is deployed.

For identification, compare the ASN against a newer routing snapshot and check relevant registry records for an explicit assignment or organization link. If routes appear, inspect their origin and AS_PATH in the observation context; adjacency alone does not establish an upstream, customer, or commercial peer. No conclusion about security, legitimacy, or traffic prevalence follows from these supplied observations.

Routing snapshot
Zero IPv4 prefixes, IPv6 prefixes, estimated IPv4 addresses, and AS_PATH neighbours were observed in the combined snapshot at 2026-11-03 14:00 UTC across route-views2 and route-views6.
Identity
Operator and individual assignment are unknown from the supplied evidence.
Triage
Snapshot absence does not establish inactivity, safety, or legitimacy.
Operator
Unknown
Country
Unknown
Website
Unknown

Network & routing

Network type
Unknown
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
1504 [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
IANA resource block
1-1876 [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
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
AS_PATH neighbours observed
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.