IP pool by organisation

Search for "PSINET/Centrax Information Technology"

IP Pool	Country	State / Region	City	Coordinates	Timezone
206.3.142.0 - 206.3.142.255	United States ISP \| ORG	Illinois ISP \| ORG	Chicago ISP \| ORG	41.8819, -87.6247	America/Chicago (UTC-5) ISP \| ORG