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Data as of Nov 9, 2026

140.163.0.0/17

No anonymizer space · no proxy exits in 30 days

Memorial Sloan-Kettering Cancer Center

Announcement

this exact prefix

No RPKI

Announced by

Type

Business

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

More specific

Announcements inside

Prefix	Origin	Type	Holder	RPKI
140.163.64.0/24 since Apr 2025	AS14822	Business	Memorial Sloan-Kettering Cancer Center
140.163.70.0/24 since Apr 2025	AS14822	Business	Memorial Sloan-Kettering Cancer Center

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

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

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS7029 not the origin	RADB	Windstream (PaeTec)	MAINT-AS7029	Nov 13, 2023
AS14822	RADB	Akamai Technologies, Inc.	MAINT-AS32787	Nov 13, 2023

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
140.163.0.0/24	AS14822	RADB	Akamai Technologies, Inc	MAINT-AS32787	Nov 13, 2023
140.163.1.0/24	AS14822	RADB	Akamai Technologies, Inc	MAINT-AS32787	Nov 13, 2023
140.163.4.0/24	AS14822	RADB	Akamai Technologies, Inc.	MAINT-AS32787	Nov 13, 2023
140.163.6.0/24	AS14822	RADB	Akamai Technologies, Inc	MAINT-AS32787	Nov 13, 2023
140.163.53.0/24	AS14822	RADB	Akamai Technologies, Inc	MAINT-AS32787	Nov 13, 2023