153.156.48.0/22
AS4713 · NTT Communications Corporation
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inetnum: 153.128.0.0 - 153.253.255.255 netname: OCN-CIDR-BLK-JP descr: NTT COMMUNICATIONS CORPORATION remarks: Email address for spam or abuse complaints : abuse@ocn.ad.jp country: JP admin-c: JP00009614 tech-c: JP00009427 remarks: This information has been partially mirrored by APNIC from remarks: JPNIC. To obtain more specific information, please use the remarks: JPNIC WHOIS Gateway at remarks: http://www.nic.ad.jp/en/db/whois/en-gateway.html or remarks: whois.nic.ad.jp for WHOIS client. (The WHOIS client remarks: defaults to Japanese output, use the /e switch for English remarks: output) last-modified: 2021-06-29T19:35:02Z source: JPNIC
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What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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