Autonomous System

AS33194 Chemical Abstracts Service

BusinessActiveUnited StatesARIN

AS33194 (CAS-AUTONOMOUS-SYSTEM) is a business network operated by Chemical Abstracts Service in United States, registered with ARIN. It has 9 IPv4 prefixes with 67,584 addresses, which makes it the 3,179th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses67,584in 9 prefixes
IPv6 prefixes0none
Size rank#3,179of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationChemical Abstracts Service
AS nameCAS-AUTONOMOUS-SYSTEM
Websitecas.org
Country United States (US)
Network typeBusiness
RegistryARIN
Abuse contactnsg@cas.org
Registered2004-10-22
Last updated2012-03-02

IPv4 prefixes

9 prefixes · 67,584 addresses
NetworkAddressesFirst – last address
134.243.0.0/1665,536134.243.0.0 – 134.243.255.255
134.243.5.0/24256134.243.5.0 – 134.243.5.255
134.243.50.0/24256134.243.50.0 – 134.243.50.255
134.243.86.0/24256134.243.86.0 – 134.243.86.255
134.243.90.0/24256134.243.90.0 – 134.243.90.255
134.243.252.0/24256134.243.252.0 – 134.243.252.255
134.243.253.0/24256134.243.253.0 – 134.243.253.255
134.243.254.0/24256134.243.254.0 – 134.243.254.255
134.243.255.0/24256134.243.255.0 – 134.243.255.255

IPv6 prefixes

No IPv6 prefixes.

Query AS33194 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=AS33194&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS33194, with or without a key:

curl "https://api.ipapi.is/?q=134.243.0.1"

Largest networks in United States

AS749 United States Department of Defense (DoD)227,464,192 IPv4 addressesAS16509 Amazon.com, Inc.218,038,784 IPv4 addressesAS7018 AT&T Enterprises, LLC117,262,080 IPv4 addressesAS8075 Microsoft Corporation81,463,040 IPv4 addressesAS721 United States Department of Defense (DoD)73,070,080 IPv4 addressesAS7922 Comcast Cable Communications, LLC68,336,896 IPv4 addresses