140.232.72.0/21 - (AS53260)
CIDR
140.232.72.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Worcester (University Park)
RIR
ARIN
Status
allocated
Allocated
1990-05-21
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below. | ||||
More-Specific Announcements
2 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 140.232.76.0/24 | AS14618 AMAZON-AES - Amazon.com, Inc. | Valid | - | 2026-10-11 |
| 140.232.77.0/24 | AS16509 AMAZON-02 - Amazon.com, Inc. | Valid | - | 2026-10-11 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 140.232.72.0/22 | AS53260 | 🇺🇸US | allocated |
| 140.232.76.0/23 | 🇺🇸US | allocated | |
| 140.232.78.0/23 | AS53260 | 🇺🇸US | allocated |
Transfer History
Registry transfers of 140.232.72.0/21, blocks inside it, or blocks containing it.
- 140.232.76.0/23Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 140.232.76.0/23 | Transfer |
Origin ASN
AS53260
Related Prefixes
Geolocation
Country🇺🇸United StatesUS
RegionMassachusetts
CityWorcester (University Park)
Coordinates42.2510, -71.8230 ↗
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/140.232.72.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/140.232.72.0/21" | jq
External Links