Autonomous system
AS21835 SCARSDALE-SECURITY-SYSTEMS
Unclassified ARIN
Summary
Scarsdale Security Systems
security business private us
The AS handle SCARSDALE-SECURITY-SYSTEMS is held by Scarsdale Security Systems, Inc.
What it's used for
- The address space is registered under the netname
SCARSDALESECURITY, indicating a private corporate network for a security systems provider. - The AS announces 1024 IPv4 addresses within a single /22 prefix and 1 IPv6 prefix, while maintaining only 3 observed neighbours. This low neighbour count relative to the address inventory suggests a small, self-contained business network rather than a transit or large-scale access provider.
Notable
- The RDAP registrant
Scarsdale Security Systems, Inc.matches the AS holder name exactly, confirming consistent ownership of the announced space. - The inventory consists of a single contiguous IPv4 block (199.16.212.0/22) and one IPv6 prefix (2605:d4c0::/32), representing a compact and unified address estate.
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 1 prefixes · 1.02K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS21835- Registry name
- SCARSDALE-SECURITY-SYSTEMS
- Registrant
- Scarsdale Security Systems, Inc.
- Abuse contact
- draizen@scarsdalesecurity.com
- Registered
- 2010-06-29
- Last changed
- 2025-01-28
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS21835
- ASPA
- no ASPA record
- IRR
- 80% registered · 4 of 5 announcements
- Route objects
- 4 naming AS21835
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 1,773 prefixes, as published 2026-10-13. 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