209.2.224.0/20 - Columbia University (AS14)
CIDR
209.2.224.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
New York
RIR
ARIN
Status
allocated
Allocated
2025-11-20
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.2.224.0/20 | AS14 COLUMBIA-GW - Columbia University | No ROA | Other IRR | 2026-10-11 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS14 | Other IRR | MAINT-AS14 | 2023-11-13 |
Transfer History
Registry transfers of 209.2.224.0/20, blocks inside it, or blocks containing it.
- 209.2.224.0/20Transfer ·
- 209.2.0.0/16M&A ·
Origin ASN
AS14
COLUMBIA-GW - Columbia University
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/209.2.224.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.2.224.0/20" | jq
External Links