Data as of Nov 15, 2026
160.79.152.0/22
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Umass Memorial health care inc
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recent change
New origin Oct 22, 2026
its first announcement on record
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.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 160.79.128.0/18 | 16,384 | UMHC | Umass Memorial health care inc (UMHC) · US | Direct Allocation | Mar 30, 2022 | Networkservices@ |
| └ 160.79.152.0/22 | 1,024 | AZURE-NET-160-79-152-0-22 | Umass Memorial health care inc (C11725414) · US | Reassigned | Oct 1, 2026 | Networkservices@ via UMHC |
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
- Umass Memorial health care inc
- Handle
- UMHC
- Range
- 160.
79. 128. 0/ 18 - Registration type
- Direct Allocation
- Record created
- Mar 30, 2022
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
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 22, 2026
- Current origin since
- Oct 22, 2026 · under a month
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 160.
79. 152. 0/ 22 - Netname
- AZURE-NET-160-79-152-0-22
- Registrant
- Umass Memorial health care inc
- Organization
- Umass Memorial health care inc (C11725414)
- Type
- Reassigned
- Handle
- NET-160-79-152-0-1
- Parent
- NET-160-79-128-0-1
- Created
- Oct 1, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 30, 2022
- Status
- assigned
Report abuse
Abuse contact
- Networkservices@
umassmemorial. org - Name
- NetDesign
- Phone
- +1-508-334-8674
- Handle
- NETDE-ARIN