IP pool by ISP

Search for "NIC Corporation"

IP Pool	Country	State / Region	City	Coordinates	Timezone
218.40.171.0 - 218.40.171.7	Japan ISP \| ORG	Tokyo ISP \| ORG	Shinjuku ISP \| ORG	35.6933, 139.709	Asia/Tokyo (UTC+9) ISP \| ORG