Data as of Nov 8, 2026
146.189.26.0/24
No anonymizer space · no proxy exits in 30 daysUniversity of Massachusetts Medical School
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 146.189.0.0/16 since May 2024 | AS5724 | Business | 1 | University of Massachusetts Medical School |
Network & registry
Origin network
AS5724
US
- Name
- University of Massachusetts Medical School
- Type
- Education
- Registered
- Sep 6, 1995
- Domain
- umassmed.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
- Rotating
- First seen
- Apr 2022
- Current origin since
- Nov 2024 · 2.0 yr
- Origin networks
- 2
- Last change of origin
- Nov 2024
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS398427 not the origin | RADB | Markley Network Services LLC. | MAINT-AS27506 | Jul 3, 2024 |
Whois
Registration for this announcement
- Range
- 146.
189. 0. 0/ 16 - Netname
- UMASSMED
- Registrant
- University of Massachusetts Medical School
- Organization
- University of Massachusetts Medical School (UMMC-1-Z)
- Org address
- 55 Lake Avenue North, Worcester, MA, 01655
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-146-189-0-0-1
- Parent
- NET-146-0-0-0-0
- Created
- Feb 26, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 26, 1991
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN