Data as of Nov 6, 2026
146.203.149.0/24
No anonymizer space · no proxy exits in 30 daysMount Sinai School of Medicine
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 146.203.148.0/22 since May 2014 | AS11452 | Business | Mount Sinai School of Medicine |
Network & registry
Origin network
AS11452
US
- Name
- Mount Sinai School of Medicine
- Type
- Education
- Registered
- Aug 27, 1998
- Domain
- mssm.edu
- Industry
- Hospitals and Medical Centers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2010
- Current origin since
- Nov 2023 · 3.0 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 146.203.148.0/22 | AS11452 | /24 | ARIN | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS11452 | RADB | Akamai Technologies, Inc. | MAINT-AS32787 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 146.
203. 0. 0/ 16 - Netname
- MSSMEDU-1
- Registrant
- Mount Sinai School of Medicine
- Organization
- Mount Sinai School of Medicine (MSSM)
- Org address
- One Gustave L. Levy Place, New York, NY, 10029-6574
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-146-203-0-0-1
- Parent
- NET-146-0-0-0-0
- Created
- Feb 28, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 28, 1991
- Status
- assigned
Report abuse
Abuse contact
- andrew.
pizzimenti@ mssm. edu - Name
- Pizzimenti, Andrew
- Phone
- +1-212-241-4929
- Handle
- AP412-ARIN