IP pool by ISP

Search for "National Astronomy and Ionosphere Center"

IP Pool	Country	State / Region	City	Coordinates	Timezone
192.65.176.0 - 192.65.176.255	Puerto Rico ISP \| ORG	Puerto Rico ISP \| ORG	San Juan ISP \| ORG	18.3653, -66.7486	America/Puerto_Rico (UTC-4) ISP \| ORG