asn.dev

Autonomous system

AS54357 FIRST-SOLAR - First Solar, inc.

Unclassified ARIN

IPv4 addresses 512 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

First Solar

United States of America · AI-generated

business solar corporate

The AS handle FIRST-SOLAR is held by First Solar, Inc.

What it's used for

  • The address space carries corporate infrastructure, with netnames FIRST-SO23-155 and BUCKEYE-CABLESYSTEM indicating internal and leased segments.
  • The AS announces 512 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access network.
  • Traffic from this AS consists of office workers and web/API endpoints for a solar panel manufacturer, not subscriber eyeballs or media streams.

Notable

  • Registrants include FIRST SOLAR LLC and Buckeye Cablevision, Inc., with the latter suggesting leased or historically acquired address space.
  • The inventory is finely subdivided into two /24 blocks, reflecting site-by-site segmentation typical of a large corporate network.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13490Buckeye Cablevision, Inc.111
AS7018AT&T Enterprises, LLC21

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS54357
Registry name
FIRST-SOLAR
Registrant
First Solar, inc.
Abuse contact
networkadministratorspbg@firstsolar.com
Registered
2012-01-27
Last changed
2012-01-27
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS54357
ASPA
no ASPA record
IRR
50% registered · 1 of 2 announcements 1 other origin
Route objects
1 naming AS54357

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 449 networks and 1,846 prefixes, as published 2026-11-02. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check