Data as of Nov 9, 2026
140.163.53.0/24
No anonymizer space · no proxy exits in 30 daysMemorial Sloan-Kettering Cancer Center
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 140.163.0.0/16 since May 2005 | AS14822 | Business | 3 | Memorial Sloan-Kettering Cancer Center |
Network & registry
Announced by
Covering announcement 140.163.0.0/17
- Prefix
- 140.163.0.0/17
- Announced by
- AS14822 Memorial Sloan-Kettering Cancer Center
- Type
- Business
- RPKI
- No RPKI
- Netname
- MSKCC
- Registrant
- Memorial Sloan-Kettering Cancer Center
- RIR
- ARIN
Origin network
AS14822
US
- Name
- Memorial Sloan-Kettering Cancer Center
- Type
- Business
- Registered
- Dec 6, 2021
- Domain
- mskcc.org
- Industry
- Retail Stores, Wholesale, and E-commerce Sites
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
140.163.0.0/17
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 140.
163. 0. 0/ 16 - Netname
- MSKCC
- Registrant
- Memorial Sloan-Kettering Cancer Center
- Organization
- Memorial Sloan-Kettering Cancer Center (MSK-1)
- Org address
- 1275 York Avenue, New York, NY, 10021
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-140-163-0-0-1
- Parent
- NET-140-0-0-0-0
- Created
- May 4, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- May 4, 1990
- Status
- assigned
Report abuse
Abuse contact
- netsec@
mskcc. org - Name
- netsec@msk-ARIN
- Phone
- +1-646-888-0628
- Handle
- NETSE6-ARIN