40.124.0.0/16 - Microsoft Corporation (AS8075)
CIDR
40.124.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
San Antonio
RIR
ARIN
Status
allocated
Allocated
2015-02-23
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 40.124.0.0/16 | AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | Valid | Other IRR | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 40.124.0.0/16 | AS8075 | /16 | arin |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS8075 | Other IRR | MAINT-AS8075 | 2023-11-13 |
Transfer History
Registry transfers of 40.124.0.0/16, blocks inside it, or blocks containing it.
- 40.64.0.0/10Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 40.64.0.0/10 | Transfer |
Related Prefixes
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 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/40.124.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/40.124.0.0/16" | jq
External Links