IP pool by organisation

Search for "CERFnet, Health Alliance Plan"

IP Pool	Country	State / Region	City	Coordinates	Timezone
206.18.205.128 - 206.18.205.143	United States ISP \| ORG	Michigan ISP \| ORG	Detroit ISP \| ORG	42.3661, -83.0821	America/Detroit (UTC-4) ISP \| ORG