37.228.121.0/24 - Microsoft Corporation (AS8075)
CIDR
37.228.121.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇳🇱 The Netherlands
City
Amsterdam
RIR
RIPE
Status
assigned
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 37.228.121.0/24 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | Valid | Other IRRRIPE | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 37.228.121.0/24 | AS8075 | /24 | ripe |
Transfer History
Registry transfers of 37.228.121.0/24, blocks inside it, or blocks containing it.
- 37.228.120.0/21Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 37.228.120.0/21 | Fujitsu Technology Solutions GmbH | Manage Now GmbH | Transfer |
Related Prefixes
More prefixes of AS8075
All prefixes of AS8075 →Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfer marketTransfers published by all five RIRs
API
Open https://api.ipctl.io/v1/prefix/37.228.121.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/37.228.121.0/24" | jq
External Links