Autonomous System

AS23138 FIRST STEP INTERNET, LLC

ISPActiveUnited StatesARIN

AS23138 (FIRST-STEP) is an ISP network operated by FIRST STEP INTERNET, LLC in United States, registered with ARIN. It has 30 IPv4 prefixes with 29,952 addresses and 3 IPv6 prefixes, which makes it the 5,532nd largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses29,952in 30 prefixes
IPv6 prefixes3≈ 1.6 × 10²⁹ addresses
Size rank#5,532of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationFIRST STEP INTERNET, LLC
AS nameFIRST-STEP
Websitefsr.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@fsr.com
Registered2002-01-30
Last updated2002-01-30

IPv4 prefixes

30 prefixes · 29,952 addresses
NetworkAddressesFirst – last address
64.126.128.0/1816,38464.126.128.0 – 64.126.191.255
64.126.128.0/212,04864.126.128.0 – 64.126.135.255
64.126.152.0/212,04864.126.152.0 – 64.126.159.255
64.126.132.0/221,02464.126.132.0 – 64.126.135.255
64.126.160.0/2351264.126.160.0 – 64.126.161.255
64.126.170.0/2351264.126.170.0 – 64.126.171.255
64.126.172.0/2351264.126.172.0 – 64.126.173.255
64.126.174.0/2351264.126.174.0 – 64.126.175.255
64.126.180.0/2351264.126.180.0 – 64.126.181.255
64.126.182.0/2351264.126.182.0 – 64.126.183.255
204.52.246.0/23512204.52.246.0 – 204.52.247.255
64.126.131.0/2425664.126.131.0 – 64.126.131.255
64.126.136.0/2425664.126.136.0 – 64.126.136.255
64.126.138.0/2425664.126.138.0 – 64.126.138.255
64.126.140.0/2425664.126.140.0 – 64.126.140.255
64.126.141.0/2425664.126.141.0 – 64.126.141.255
64.126.143.0/2425664.126.143.0 – 64.126.143.255
64.126.148.0/2425664.126.148.0 – 64.126.148.255
64.126.149.0/2425664.126.149.0 – 64.126.149.255
64.126.162.0/2425664.126.162.0 – 64.126.162.255
64.126.165.0/2425664.126.165.0 – 64.126.165.255
64.126.166.0/2425664.126.166.0 – 64.126.166.255
64.126.169.0/2425664.126.169.0 – 64.126.169.255
64.126.184.0/2425664.126.184.0 – 64.126.184.255
64.126.186.0/2425664.126.186.0 – 64.126.186.255
The 25 largest of 30. The API and the database have all of them.

IPv6 prefixes

3 prefixes
  • 2604:2a00::/32
  • 2604:2a00::/33
  • 2604:2a00:8000::/33

Query AS23138 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=AS23138&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS23138, with or without a key:

curl "https://api.ipapi.is/?q=64.126.128.1"

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