Autonomous System

AS13998 University of Texas Southwestern Medical Center

EducationActiveUnited StatesARIN

AS13998 (SWMED) is an education network operated by University of Texas Southwestern Medical Center in United States, registered with ARIN. It has 13 IPv4 prefixes with 86,016 addresses and 1 IPv6 prefix, which makes it the 2,544th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses86,016in 13 prefixes
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#2,544of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationUniversity of Texas Southwestern Medical Center
AS nameSWMED
Country United States (US)
Network typeEducation
RegistryARIN
Registered1999-10-01
Last updated2013-01-29

IPv4 prefixes

13 prefixes · 86,016 addresses
NetworkAddressesFirst – last address
129.112.0.0/1665,536129.112.0.0 – 129.112.255.255
198.215.48.0/204,096198.215.48.0 – 198.215.63.255
198.215.96.0/204,096198.215.96.0 – 198.215.111.255
198.215.176.0/204,096198.215.176.0 – 198.215.191.255
198.241.16.0/204,096198.241.16.0 – 198.241.31.255
198.215.36.0/221,024198.215.36.0 – 198.215.39.255
199.242.236.0/221,024199.242.236.0 – 199.242.239.255
199.165.152.0/23512199.165.152.0 – 199.165.153.255
199.242.234.0/23512199.242.234.0 – 199.242.235.255
129.112.109.0/24256129.112.109.0 – 129.112.109.255
129.112.115.0/24256129.112.115.0 – 129.112.115.255
199.165.154.0/24256199.165.154.0 – 199.165.154.255
199.249.214.0/24256199.249.214.0 – 199.249.214.255

IPv6 prefixes

1 prefix
  • 2620:0:840::/48

Query AS13998 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=AS13998&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS13998, with or without a key:

curl "https://api.ipapi.is/?q=129.112.0.1"

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