Data as of Nov 5, 2026
213.156.249.0/24
No anonymizer space · no proxy exits in 30 daysMicrosoft Corporation · space held by Open Systems AG
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 |
|---|---|---|---|---|---|---|
| 213.156.224.0/19 | 8,192 | CH-OPEN-20030130 | Open Systems AG (ORG-OSA1-RIPE) · CH | ALLOCATED PA | Jan 30, 2003 | support@ |
| └ 213.156.249.0/24 | 256 | NET-249 | unknown | ASSIGNED PA | Apr 22, 2024 | support@ via CH-OPEN-20030130 |
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
- Open Systems AG
- Handle
- ORG-OSA1-RIPE
- Range
- 213.
156. 224. 0/ 19 - Registration type
- ALLOCATED PA
- Record created
- Jan 30, 2003
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
- Apr 2024
- Current origin since
- Apr 2024 · 2.5 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 213.
156. 249. 0/ 24 - Netname
- NET-249
- Registrant country
- CH
- Organization
- Not stated by the registry
- Type
- ASSIGNED PA
- Created
- Apr 22, 2024
- Updated
- Jan 20, 2025
- Maintainer
- AS9092-MNT
- RIR
- RIPE NCC
- Country
- CH
- Delegated
- Jan 30, 2003
- Status
- assigned
Report abuse
Abuse contact
- support@
open. ch - Name
- Open Systems Abuse
- Handle
- OSA40-RIPE