Autonomous System

AS7328 The Children's Hospital of Philadelphia

BusinessActiveUnited StatesARIN

AS7328 (CHOP) is a business network operated by The Children's Hospital of Philadelphia in United States, registered with ARIN. It has 4 IPv4 prefixes with 69,888 addresses, which makes it the 3,011th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses69,888in 4 prefixes
IPv6 prefixes0none
Size rank#3,011of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationThe Children's Hospital of Philadelphia
AS nameCHOP
Websitechop.edu
Country United States (US)
Network typeBusiness
RegistryARIN
Abuse contactinfosecurity@chop.edu
Registered1996-11-08
Last updated2026-02-27

IPv4 prefixes

4 prefixes · 69,888 addresses
NetworkAddressesFirst – last address
159.14.0.0/1665,536159.14.0.0 – 159.14.255.255
159.14.224.0/212,048159.14.224.0 – 159.14.231.255
159.14.232.0/212,048159.14.232.0 – 159.14.239.255
159.14.197.0/24256159.14.197.0 – 159.14.197.255

IPv6 prefixes

No IPv6 prefixes.

Query AS7328 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=AS7328&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS7328, with or without a key:

curl "https://api.ipapi.is/?q=159.14.0.1"

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