IP subnet details

166.203.240.0/21

AS20057  — AT&T Enterprises, LLC

Summary

Country
US United States
Domain att.net
Size 2,048
Registry ARIN
Network Name AEL-360

Whois

Various Registries (Maintained by ARIN) NET166 (NET-166-0-0-0-0) 166.0.0.0 - 166.255.255.255
AT&T Enterprises, LLC AEL-360 (NET-166-183-0-0-1) 166.183.0.0 - 166.209.255.255

CIDR IP address subranges within 166.203.240.0/21 subnet

  • 166.203.240.0/24
  • 166.203.241.0/24
  • 166.203.242.0/24
  • 166.203.243.0/24
  • 166.203.244.0/24
  • 166.203.245.0/24
  • 166.203.246.0/24
  • 166.203.247.0/24

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