Data as of Nov 4, 2026
128.211.20.0/24
No anonymizer space · no proxy exits in 30 daysPurdue University
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 128.211.0.0/16 since May 2005 | AS17 | Business | 1,126 2 always on | Purdue University |
Network & registry
Origin network
AS397511
US
- Name
- Purdue University
- Type
- Education
- Registered
- Apr 24, 2019
- Domain
- purdue.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- First seen
- Before our records
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 128.211.0.0/16 | AS17 | /24 | ARIN | Another network |
| 128.211.0.0/16 | AS19782 | /24 | ARIN | Another network |
| 128.211.0.0/16 | AS397501 | /24 | ARIN | Another network |
| 128.211.0.0/16 | AS397511 | /24 | ARIN | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS397511 | RADB | Purdue University | MAINT-IU | Apr 18, 2025 |
Whois
Registration for this announcement
- Range
- 128.211.0.0/16
- Netname
- PURDUE-CS-CYP
- Registrant
- Purdue University
- Organization
- Purdue University (PURDUE-Z)
- Org address
- Information Technology, West Lafayette, IN, 47907-2114
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-128-211-0-0-1
- Parent
- NET-128-0-0-0-0
- Created
- Mar 12, 1987
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 12, 1987
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Purdue University STEAM-CIRT
- Phone
- +1-765-496-1666
- Handle
- PUISP-ARIN