Data as of Nov 5, 2026

216.73.183.0/24

No anonymizer space · no proxy exits in 30 days

Microsoft Corporation · space held by Simon Telephonics

Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
216.73.182.0/23512SIMON-TEL-01Simon Telephonics (WCS-427) · USDirect AllocationOct 4, 2021arin@simon.tel
└ 216.73.183.0/24256SIMONTEL-AZ-E-USunknownReassignedSep 18, 2022arin@simon.tel
via SIMON-TEL-01

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

Registry

Holder

Organization
Simon Telephonics
Handle
WCS-427
Range
216.73.182.0/23
Registration type
Direct Allocation
Record created
Oct 4, 2021
Origin network

AS8075

US
Name
Microsoft Corporation
Type
Hosting
Registered
Mar 31, 1997
Domain
microsoft.com
Website
www.microsoft.com
Industry
Software Development
Spamhaus ASN-DROP
not listed