Autonomous System

AS5724 University of Massachusetts Medical School

EducationActiveUnited StatesARIN

AS5724 (UMASSMED) is an education network operated by University of Massachusetts Medical School in United States, registered with ARIN. It has 4 IPv4 prefixes with 68,096 addresses, which makes it the 3,120th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses68,096in 4 prefixes
IPv6 prefixes0none
Size rank#3,120of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationUniversity of Massachusetts Medical School
AS nameUMASSMED
Websiteumassmed.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactHostedServices@umassmed.edu
Registered1995-09-06
Last updated2023-07-01

IPv4 prefixes

4 prefixes · 68,096 addresses
NetworkAddressesFirst – last address
146.189.0.0/1665,536146.189.0.0 – 146.189.255.255
146.189.128.0/212,048146.189.128.0 – 146.189.135.255
146.189.25.0/24256146.189.25.0 – 146.189.25.255
146.189.26.0/24256146.189.26.0 – 146.189.26.255

IPv6 prefixes

No IPv6 prefixes.

Query AS5724 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS5724&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS5724, with or without a key:

curl "https://api.ipapi.is/?q=146.189.0.1"

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