Data as of Nov 15, 2026
172.192.1.0/24
No anonymizer space · no proxy exits in 30 daysIFX Corporation · space held by Microsoft Limited
Announcement
this exact prefix
RPKI invalid (origin)
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 172.192.0.0/13 since Aug 2024 | AS8075 | Hosting | Microsoft Limited |
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 |
|---|---|---|---|---|---|---|
| 172. | 5,767,168 | UK-MICROSOFT-20000324 | Microsoft Limited (ORG-MA42-RIPE) · GB | ALLOCATED PA | May 16, 2024 | abuse@ |
| └ 172.192.0.0/16 | 65,536 | cloud | unknown | ASSIGNED PA | Sep 5, 2025 | abuse@ via UK-MICROSOFT-20000324 |
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
IPv4 market
Holder
- Organization
- Microsoft Limited
- Handle
- ORG-MA42-RIPE
- Range
- 172.
128. 0. 0 - 172. 215. 255. 255 - Registration type
- ALLOCATED PA
- Record created
- May 16, 2024
Origin network
AS18747
US
- Name
- IFX Corporation
- Type
- Hosting
- Registered
- Feb 17, 2015
- Domain
- ifxnetworks.com
- Website
- www.ifxnetworks.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 6
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- First seen
- Before our records
- Origin networks
- 0
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 172.192.0.0/13 | AS8075 | /13 | RIPE | Another network |
Whois
Registration for this announcement
- Range
- 172.
192. 0. 0/ 16 - Netname
- cloud
- Registrant country
- JP
- Organization
- Not stated by the registry
- Type
- ASSIGNED PA
- Created
- Sep 5, 2025
- Updated
- Sep 5, 2025
- Maintainer
- MICROSOFT-MAINT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Feb 13, 2002
- Status
- assigned
Report abuse
Abuse contact
- abuse@
microsoft. com - Name
- Microsoft Abuse Contact
- Handle
- MAC274-RIPE