IP pool by organisation

Search for "PSINET/DMAC"

IP Pool	Country	State / Region	City	Coordinates	Timezone
206.4.197.0 - 206.4.197.255	United States ISP \| ORG	Ohio ISP \| ORG	Westlake ISP \| ORG	41.4589, -81.893	America/New_York (UTC-4) ISP \| ORG