Autonomous System

AS19905 Arbor Cloud

BusinessActiveUnited StatesARIN

AS19905 (SECURITYSERVICES) is a business network operated by Arbor Cloud in United States, registered with ARIN. It has 131 IPv4 prefixes with 36,096 addresses and 26 IPv6 prefixes, which makes it the 4,999th largest of 82,283 active autonomous systems by IPv4 space.

IPv4 addresses36,096in 131 prefixes
IPv6 prefixes26≈ 3.1 × 10²⁵ addresses
Size rank#4,999of 82,283 active ASNs
Abuser scoreLow0.06% of its addresses flagged · method

Details

OrganizationArbor Cloud
AS nameSECURITYSERVICES
Websitenetscout.com
Country United States (US)
Network typeBusiness
RegistryARIN
Abuse contactarin-arborc@netscout.com
Registered2007-08-24
Last updated2026-07-20

IPv4 prefixes

131 prefixes · 36,096 addresses
NetworkAddressesFirst – last address
139.104.72.0/212,048139.104.72.0 – 139.104.79.255
156.154.164.0/23512156.154.164.0 – 156.154.165.255
217.173.88.0/23512217.173.88.0 – 217.173.89.255
217.173.92.0/23512217.173.92.0 – 217.173.93.255
12.51.26.0/2425612.51.26.0 – 12.51.26.255
24.248.247.0/2425624.248.247.0 – 24.248.247.255
37.224.77.0/2425637.224.77.0 – 37.224.77.255
46.184.42.0/2425646.184.42.0 – 46.184.42.255
68.22.157.0/2425668.22.157.0 – 68.22.157.255
68.71.223.0/2425668.71.223.0 – 68.71.223.255
74.115.24.0/2425674.115.24.0 – 74.115.24.255
74.115.26.0/2425674.115.26.0 – 74.115.26.255
74.115.27.0/2425674.115.27.0 – 74.115.27.255
74.115.28.0/2425674.115.28.0 – 74.115.28.255
74.115.30.0/2425674.115.30.0 – 74.115.30.255
77.232.97.0/2425677.232.97.0 – 77.232.97.255
83.111.28.0/2425683.111.28.0 – 83.111.28.255
91.102.233.0/2425691.102.233.0 – 91.102.233.255
91.102.234.0/2425691.102.234.0 – 91.102.234.255
91.102.235.0/2425691.102.235.0 – 91.102.235.255
91.102.236.0/2425691.102.236.0 – 91.102.236.255
91.102.237.0/2425691.102.237.0 – 91.102.237.255
91.102.239.0/2425691.102.239.0 – 91.102.239.255
91.229.32.0/2425691.229.32.0 – 91.229.32.255
91.229.33.0/2425691.229.33.0 – 91.229.33.255
The 25 largest of 131. The API and the database have all of them.

IPv6 prefixes

26 prefixes
  • 2001:67c:3e8::/48
  • 2403:c580:fff3::/48
  • 2403:c580:fffd::/48
  • 2610:a1:2000::/48
  • 2610:a1:2001::/48
  • 2610:a1:2002::/48
  • 2610:a1:2003::/48
  • 2610:a1:2004::/48
  • 2610:a1:2005::/48
  • 2610:a1:2006::/48
  • 2610:a1:2007::/48
  • 2610:a1:2008::/48
  • 2610:a1:2009::/48
  • 2610:a1:200a::/48
  • 2610:a1:200b::/48
  • 2610:a1:200c::/48
  • 2610:a1:200d::/48
  • 2610:a1:200f::/48
  • 2610:a1:2016::/48
  • 2610:a1:201c::/48
  • 2610:a1:20ff::/48
  • 2620:1d6:fff3::/48
  • 2620:1d6:fffd::/48
  • 2a02:cb81:1014::/48
  • 2a05:4a40:fff3::/48
The 25 largest of 26. The API and the database have all of them.

Query AS19905 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=AS19905&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS19905, with or without a key:

curl "https://api.ipapi.is/?q=139.104.72.1"

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