210.172.248.0/21

AS4721 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS4721
Parent Range	210.172.240.0/20
Registry	JPNIC
ID	JCOM-NET

WHOIS Details

inetnum:        210.172.252.0 - 210.172.255.255
netname:        JCOM-NET
descr:          Jupiter Telecommunications Co., Ltd.
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
last-modified:  2015-12-26T01:44:06Z
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)
source:         JPNIC

Overlapping Ranges

BGP prefixes that contain 210.172.248.0/21

Range	ASN	Company	Num of IPs
210.172.240.0/20	AS4721	JCOM Co., Ltd.	4,096

Nearby Ranges

BGP prefixes that overlap with 210.172.0.0/16

Range	ASN	Company	Num of IPs
210.172.64.0/18	AS2516	KDDI CORPORATION	16,384
210.172.192.0/19	AS7690	Mirai Communication Network Inc.	8,192
210.172.160.0/19	AS7506	GMO Internet, Inc.	8,192
210.172.32.0/19	AS7671	NTT SmartConnect Corporation	8,192
210.172.128.0/19	AS7506	GMO Internet, Inc.	8,192
210.172.0.0/19	AS9600	Sony Biz Networks Corporation	8,192
210.172.224.0/20	AS4680	Mitsubishi Electric Information Network Corporation	4,096
210.172.240.0/20	AS4721	JCOM Co., Ltd.	4,096
210.172.240.0/21	AS4721	Jupiter Telecommunications Co., Ltd.	2,048

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

26 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
210.172.254.140	AS4721 JCOM Co., Ltd.	10.76ms from Tokyo, JP
210.172.253.114	AS4721 JCOM Co., Ltd.	11.83ms from Tokyo, JP
210.172.255.223	AS4721 JCOM Co., Ltd.	10.17ms from Tokyo, JP
210.172.252.1	AS4721 JCOM Co., Ltd.	2.37ms from Tokyo, JP

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
63.84.5.149	AS701 Verizon Business	9.51ms from Ashburn, US
69.248.157.37	AS7922 Comcast Cable Communications, LLC	9.82ms from Ashburn, US
71.28.131.181	AS7029 Windstream Communications LLC	5.15ms from Atlanta, US
188.255.245.53	AS52116 Orion Telekom Tim d.o.o.Beograd	3.69ms from Belgrade, RS
186.57.130.53	AS22927 Telefonica de Argentina	2.06ms from Buenos Aires, AR
47.250.148.21	AS45102 Alibaba (US) Technology Co., Ltd.	0.63ms from Kuala Lumpur, MY
86.16.7.117	AS5089 Virgin Media Limited	5.67ms from London, GB
74.212.208.197	AS14265 TPx Communications	0.69ms from Los Angeles, US
58.210.78.5	AS4134 CHINANET-BACKBONE	5.08ms from Nanjing, CN
47.19.221.149	AS6128 Cablevision Systems Corp.	1.64ms from New York City, US
195.177.94.5	AS214961 Stellar Group SAS	0.21ms from Paris, FR
89.111.95.21	AS39791 Telco Pro Services, a. s.	4.80ms from Prague, CZ
185.231.223.197	AS43541 VSHosting s.r.o.	0.42ms from Prague, CZ
119.195.167.85	AS4766 Korea Telecom	1.40ms from Seoul, KR
120.79.69.133	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	1.51ms from Shenzhen, CN
153.219.135.69	AS4713 NTT Communications Corporation	3.75ms from Tokyo, JP
198.84.145.149	AS5645 TekSavvy Solutions, Inc.	11.99ms from Toronto, CA
87.255.201.133	AS200590 NLS Kazakhstan LLC	0.57ms from Almaty, KZ
84.87.130.5	AS1136 KPN B.V.	2.04ms from Amsterdam, NL
81.207.197.181	AS1136 KPN B.V.	2.44ms from Amsterdam, NL
3.14.46.133	AS16509 Amazon.com, Inc.	0.17ms from Columbus, US
107.133.166.165	AS7018 AT&T Enterprises, LLC	3.62ms from Dallas, US
104.245.55.197	AS63251 Metro Wireless International, Inc.	1.27ms from Detroit, US
172.205.19.165	AS8075 Microsoft Corporation	0.23ms from Dublin, IE
113.169.0.69	AS45899 VNPT Corp	2.40ms from Ho Chi Minh City, VN

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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