Data as of Nov 8, 2026
141.106.67.0/24
No anonymizer space · no proxy exits in 30 daysMedical College of Wisconsin
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 141.106.0.0/16 since Dec 2010 | AS33503 | Business | 2 | Medical College of Wisconsin |
Network & registry
Origin network
AS33503
US
- Name
- Medical College of Wisconsin
- Type
- Education
- Registered
- Jan 5, 2005
- Domain
- mcw.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
- Pattern
- Stable
- First seen
- Apr 2026
- Current origin since
- Apr 2026 · 6 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 141.106.67.0/24 | AS33503 | /24 | ARIN | RPKI valid |
| 141.106.0.0/16 | AS33503 | /16 | ARIN | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS33503 | ARIN | MCW Sub-block-67 | MNT-MCW-1 | May 22, 2026 |
Whois
Registration for this announcement
- Range
- 141.
106. 0. 0/ 16 - Netname
- MCW-NET
- Registrant
- Medical College of Wisconsin
- Organization
- Medical College of Wisconsin (MCW-1)
- Org address
- MIS Department - Information Services 8701 Watertown Plank Road, Milwaukee, WI, 53226
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-141-106-0-0-1
- Parent
- NET-141-0-0-0-0
- Created
- Jul 10, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 10, 1990
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
mcw. edu - Name
- Medical College of Wisconsin Information Services
- Phone
- +1-414-955-4357
- Handle
- MH4-ORG-ARIN