Data as of Nov 5, 2026
199.83.78.0/23
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Summa Health
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recent change
New origin Sep 28, 2026
its first announcement on record
Network & registry
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
- Sep 28, 2026
- Current origin since
- Sep 28, 2026 · 1 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 199.
83. 64. 0/ 20 - Netname
- NETBLK-SUMHLTHS
- Registrant
- Summa Health
- Organization
- Summa Health (AAHL-11)
- Org address
- 1077 Gorge Blvd., Akron, OH, 44310
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-199-83-64-0-1
- Parent
- NET-199-0-0-0-0
- Created
- Dec 13, 1993
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 13, 1993
- Status
- assigned
Report abuse
Abuse contact
- NetworkEng@
summahealth. org - Name
- Networking
- Phone
- +1-234-475-0124
- Handle
- NETWO7715-ARIN