Autonomous system detail

AS1572

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 2026-11-06 20:00 UTC. Absence in this snapshot does not establish inactivity, legitimacy, 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  ·  4 sources  ·  How this page is checked

AS1572 is an ASN with an unknown operator; it had no IPv4 or IPv6 prefixes and no observed AS_PATH neighbours in the combined RouteViews snapshot at 2026-11-06 20:00 UTC. This is a snapshot result from route-views2 and route-views6 together, not evidence that the ASN is dormant or inactive. [RouteViews snapshot](https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2)

IANA places AS1572 in resource block 1–1876, which is assigned by ARIN. This identifies the allocating RIR for the block; it does not identify an individual assignment, operator, country, deployment, or service. The available evidence does not establish an organization or website associated with this ASN. [IANA ASN registry](https://www.iana.org/assignments/as-numbers/as-numbers-1.csv)

For identification, compare the ASN against a fresh routing snapshot and check authoritative registry records for an explicit ASN-to-organization link. If investigating a network that claims to use AS1572, verify its announced prefixes and origin in multiple current views, then confirm the relationship directly with the claimed operator. The zero counts here provide no basis for judging legitimacy, safety, or malicious use.

Observed routing
Zero IPv4 prefixes, zero IPv6 prefixes, and zero AS_PATH neighbours in the combined observation at 2026-11-06 20:00 UTC from route-views2 and route-views6.
Triage
Operator and deployment are unknown; zero observed routes in this snapshot do not establish inactivity or safety.
AS name
Unknown [Unknown] — 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
RIR
ARIN [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Allocated date
null [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

Security context

Unknown

[Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv

Network & routing

Network type
Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
AS rank
null [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Customer cone size
null [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Upstreams
null [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
IX presence
null [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Peering policy
null [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
RPKI status
null [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Geographic footprint
Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Related ASNs
Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Notable usage
Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
ASN
1572 [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Assignment class
null [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Last updated
null [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
IPv4 prefixes
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 prefixes
0 [Confirmed] — https://archive.routeviews.org/route-views6/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
AS_PATH neighbour count
0 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
AS_PATH neighbours sample
[] [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
Organization status
Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
Analyst note
Routing observations are limited to the combined snapshot at 2026-11-06 20:00 UTC from route-views2 and route-views6; neighbours represent AS_PATH adjacency only. [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.