IP pool by organisation

Search for "PSINET/Internet Educational Resources"

IP Pool	Country	State / Region	City	Coordinates	Timezone
206.1.174.0 - 206.1.174.255	United States ISP \| ORG	Illinois ISP \| ORG	Chicago ISP \| ORG	41.884, -87.6473	America/Chicago (UTC-5) ISP \| ORG