Data as of Nov 9, 2026
Autonomous system

AS53501

WebMD Health Services Group, Inc.

Announces 1,024 addresses in 6 prefixes. None of it is anonymizer space.

Type
Business
US

Announced prefixes

Arrived
PrefixTypeRPKI
64.113.28.0/23
since Jul 2025
Business
64.113.28.0/24
since Apr 2018
Business
64.113.29.0/24
since Oct 2023
Business
64.113.30.0/23
since Mar 2020
Business
64.113.30.0/24
since Jul 2018
Business
64.113.31.0/24
since Jul 2018
Business

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it