AS21835 — SCARSDALE-SECURITY-SYSTEMS

AS21835 announces 1 IPv4 prefixes covering 1,024 addresses and 1 IPv6 prefixes.

About this network

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.

Announced prefixes

• 199.16.212.0/22
• 2605:d4c0::/32

Upstream networks

• AS20473 The Constant Company, LLC
• AS54004 Cablevision Lightpath LLC
• AS21737 SpringNet

Adjacent networks

• AS20473 The Constant Company, LLC
• AS54004 Cablevision Lightpath LLC
• AS21737 SpringNet