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Summary
| Country |
 United States
|
| Domain | ion.city |
| Size | 512 |
| Registry | ARIN |
| Network Name | ION |
Whois
American Registry for Internet Numbers NET209 (NET-209-0-0-0-0) 209.0.0.0 - 209.255.255.255
Level 3 Parent, LLC ESPIRE-4BL (NET-209-136-0-0-1) 209.136.0.0 - 209.136.255.255
Optimum Network Services OPTNET-BLK1-20060921 (NET-209-136-66-0-1) 209.136.66.0 - 209.136.67.255CIDR IP address subranges within 209.136.66.0/23 subnet
- 209.136.66.0/24
- 209.136.67.0/24