Autonomous system detail

AS1021

Announced

AS1021 announces 1 IPv4 and 0 IPv6 prefixes and peers with 2 other networks.

IPv4 prefixes
1
~256 addresses
IPv6 prefixes
0
—
Peer networks
2
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

AS1021 is an ASN whose operator and deployment status are unknown; a combined Route Views observation saw one IPv4 prefix and no IPv6 prefixes at 2026-11-01 00:00 UTC. This single snapshot is not enough to establish whether the ASN is active more broadly, who operates it, or what service it supports.

The observation covered route-views2 and route-views6 together. It counted one IPv4 prefix, an estimated 256 IPv4 addresses, zero IPv6 prefixes, and two AS_PATH neighbours: AS7018 and AS12129. These neighbours show routing-path adjacency in the combined data; they do not establish commercial peering, upstream status, or customer/provider relationships.

For identification, compare the observed prefix and its origin to current routing data and authoritative records, then seek first-party documentation that explicitly connects an organization to AS1021. The IANA entry places AS1021 within the resource range 1–1876 and says it was assigned by ARIN; that identifies the allocating RIR, not an individual assignment, present operator, or location. The supplied evidence provides no product, website, or security assessment.

Identity
Operator and organization are Unknown from the supplied evidence.
Routing snapshot
One IPv4 prefix and zero IPv6 prefixes were observed in the combined route-views2 and route-views6 data at 2026-11-01 00:00 UTC.
Triage
The snapshot alone does not establish broader activity, legitimacy, or security status; investigate the observed prefix and seek an explicit first-party ASN-to-organization link.
Operator
Unknown [Unknown] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv

Network & routing

Routing observation
Combined observation at 2026-11-01T00:00:00.000Z across route-views2 and route-views6 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261101.0000.bz2
ASN
1021 [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
IPv4 prefixes
1 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261101.0000.bz2
IPv4 address estimate
256 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261101.0000.bz2
IPv6 prefixes
0 [Confirmed] — https://archive.routeviews.org/route-views6/bgpdata/2026.11/RIBS/rib.20261101.0000.bz2
AS_PATH neighbour count
2 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261101.0000.bz2
AS_PATH neighbours
AS7018, AS12129 [Confirmed] — https://archive.routeviews.org/route-views6/bgpdata/2026.11/RIBS/rib.20261101.0000.bz2
[ 02 ] — Announced prefixes

What this network routes.

1 prefixes total · as observed by RouteViews at 2026-11-06 · one collector view, not a global census
// IPv4 prefixes1
  1. 152.160.83.0/24/24
// IPv6 prefixes0
No IPv6 prefixes announced.
[ 03 ] — Notable peers & upstreams

Who it talks to.

2 observed neighbours
// Notable connections2 of 2 observed

Neighbours observed by RouteViews at 2026-11-06, lowest ASN first. Relationships are inferences from the CAIDA AS Relationships Dataset, 2026-08-01, and establish no commercial arrangement; a dash means the inference did not resolve.

ASNOperatorRole
AS7018 AT&T Enterprises, LLC —
AS12129 — —
Neighbours observed via public BGP collectors; not a complete peering list.