Autonomous System

AS33503 Medical College of Wisconsin

EducationActiveUnited StatesARIN

AS33503 (MCW-1-AS) is an education network operated by Medical College of Wisconsin in United States, registered with ARIN. It has 6 IPv4 prefixes with 66,816 addresses and 1 IPv6 prefix, which makes it the 3,254th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses66,816in 6 prefixes
IPv6 prefixes1≈ 1.9 × 10²⁵ addresses
Size rank#3,254of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationMedical College of Wisconsin
AS nameMCW-1-AS
Websitemcw.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contacthostmaster@mcw.edu
Registered2005-01-05
Last updated2012-03-20

IPv4 prefixes

6 prefixes · 66,816 addresses
NetworkAddressesFirst – last address
141.106.0.0/1665,536141.106.0.0 – 141.106.255.255
141.106.12.0/24256141.106.12.0 – 141.106.12.255
141.106.67.0/24256141.106.67.0 – 141.106.67.255
141.106.68.0/24256141.106.68.0 – 141.106.68.255
141.106.69.0/24256141.106.69.0 – 141.106.69.255
141.106.114.0/24256141.106.114.0 – 141.106.114.255

IPv6 prefixes

1 prefix
  • 2620:10d::/44

Query AS33503 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=AS33503&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS33503, with or without a key:

curl "https://api.ipapi.is/?q=141.106.0.1"

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