AS3527
AS3527
ARIN
ISP
Data retrieved at
This AS-only summary is estimated from a sample IP within a prefix announced by this AS, not from a specific query. Search a real IP for exact details.
Network
AS Number
AS3527
Company
National Institutes of Health
Type
ISP
IPv4 Addresses
337,664
IPv6 Addresses
3.86×10²⁵
Registry (RIR)
ARIN
128.231.0.0/16
Abuse Contacts
Announced Prefixes (13)
Netblock
Num. of IPs
RPKI
RPKI Origin Validation
RPKI verifies that an IP prefix is legitimately announced by the authorized Autonomous System (ASN) using Route Origin Authorizations (ROAs).
Valid
This prefix is correctly authorized by a valid ROA.
VALID
Validated Prefix
128.231.0.0/16
Authorized ASN
AS3527
IP Geolocation
Country
United States
Continent
North America
European Union
No
Phone prefix
+1
Currency
US Dollar (USD $)
Approximate location (country-level)
Open in Maps