Autonomous system
AS21558 SC-JOHNSON
Unclassified ARIN
Summary
S.C. Johnson & Son
business corporate internal
The AS handle SC-JOHNSON is held by S.C. Johnson & Son, Inc.
What it's used for
- The address space is entirely registered under the netname
SCJOHNSONwith registrantS.C. Johnson & Son, Inc., indicating a private corporate network. - The AS announces 65536 IPv4 addresses across 17 prefixes with only 5 observed neighbours, a ratio characteristic of an internal corporate estate rather than a public access or transit network.
Notable
- All registrants in the RDAP data match the announcer, consistently identifying
S.C. Johnson & Son, Inc.for every listed prefix. - The inventory consists of a single contiguous block (152.72.0.0/16) subdivided into 17 prefixes of varying sizes, from /18s down to /24s, reflecting site-by-site segmentation.
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 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 17 prefixes · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 17 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS21558- Registry name
- SC-JOHNSON
- Registrant
- S.C. Johnson & Son, Inc.
- Abuse contact
- ccooley@scj.com
- Registered
- 2001-05-23
- Last changed
- 2018-07-16
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS21558
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 12 naming AS21558
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 1,772 prefixes, as published 2026-10-15. 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