Autonomous system
AS4539 SEL-AS
Unclassified ARIN
Summary
Schweitzer Engineering Laboratories (SEL)
enterprise legacy
SEL-AS — Schweitzer Engineering Laboratories, the employee-owned manufacturer
in Pullman, Washington that builds protective relays, automation, and control
systems for electric power grids.
What it's used for
- Corporate networking for a manufacturer and its engineering organisation: about 1,024 IPv4 addresses, sized for the company itself rather than customers.
Notable
- An industrial/OT vendor running its own AS — the address space is the company's own, not sold on.
- The ASN was registered to SEL in 2009, so AS4539 is a reissued low number and carries no early-internet history for this holder.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS4539- Registry name
- SEL-AS
- Registrant
- Schweitzer Engineering Laboratories, Inc.
- Abuse contact
- greg_laprade@selinc.com
- Registered
- 2009-09-17
- Last changed
- 2012-03-02
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere