Data as of Nov 14, 2026
128.211.255.0/24
112 residential-proxy exits · 30 daysPurdue University
Residential-proxy exits
Proxy exits
112
44% of its addresses · 30 days
Providers
15
selling exits here
Oct 15, 2026 – Nov 13, 2026
Exits seen per day
5.0K observations
Proxy providers listing exits
- CliProxy
- ColaProxy
- FastProxy
- GSocks
- Infatica
- LemonBright
- MangoProxy
- NodeProxy
- NovaProxy
- RainProxy
- Shifter
- Thordata
- ThunderProxy
- VantageProxies
- ZENPROXY_PREMIUM
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 128.211.0.0/16 since May 2005 | AS17 | Business | 1,145 2 always on | Purdue University |
Network & registry
Announced by
Covering announcement 128.211.192.0/18
- Prefix
- 128.211.192.0/18
- Announced by
- AS397501 Purdue University
- Type
- Business
- Proxy exits
- 1,145
- Always-on exits
- 2
- RPKI
- RPKI valid
- Netname
- PURDUE-CS-CYP
- Registrant
- Purdue University
- RIR
- ARIN
Origin network
AS397501
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
128.211.192.0/18
Routing history
- Pattern
- Rotating
- First seen
- Jul 2018
- Current origin since
- Jul 2022 · 4.4 yr
- Origin networks
- 2
- Last change of origin
- Jul 2022
Recorded history
History
- Handoffs
- 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 | RPKI valid |
| 128.211.0.0/16 | AS397511 | /24 | ARIN | Another network |
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
- abuse@
purdue. edu - Name
- Purdue University STEAM-CIRT
- Phone
- +1-765-496-1666
- Handle
- PUISP-ARIN