Autonomous system
AS100 FMC-CTC
Unclassified ARIN
Summary
FMC Corporation
enterprise legacy
A corporate network of FMC Corporation (FMC-CTC), registered to its central engineering laboratories. FMC is a long-established American industrial company.
What it's used for
- Corporate and engineering networking for FMC.
Notable
- An enterprise network, not a commercial ISP. The low AS number dates to the internet's earliest years, when large industrial firms were among the first to connect.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 768 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS100- Registry name
- FMC-CTC
- Registrant
- FMC Central Engineering Laboratories
- Abuse contact
- wwhite@ctc.fmc.com
- Registered
- 1987-02-26
- Last changed
- 1991-01-11
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS100
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 4 announcements 1 other origin
- Route objects
- 0 naming AS100
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: 442 networks and 1,783 prefixes, as published 2026-10-20. 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