219.117.0.0/21

AS4721 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS4721
Parent Range	219.117.0.0/20
Registry	JPNIC
ID	JCOM-NET

WHOIS Details

inetnum:        219.117.0.0 - 219.117.7.255
netname:        JCOM-NET
descr:          Jupiter Telecommunications Co., Ltd.
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
last-modified:  2015-11-11T05:05:15Z
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 219.117.0.0/21

Range	ASN	Company	Num of IPs
219.117.0.0/20	AS4721	JCOM Co., Ltd.	4,096

Nearby Ranges

BGP prefixes that overlap with 219.117.0.0/16

Range	ASN	Company	Num of IPs
219.117.192.0/18	AS2514	INTERLINK Co.,LTD.	16,384
219.117.64.0/18	AS10010	TOKAI Communications Corporation	16,384
219.117.160.0/19	AS4721	JCOM Co., Ltd.	8,192
219.117.32.0/20	AS18126	Chubu Telecommunications Co.,Inc.	4,096
219.117.144.0/20	AS23784	SQUARE ENIX CO., LTD.	4,096
219.117.0.0/20	AS4721	JCOM Co., Ltd.	4,096
219.117.16.0/20	AS10003	Ogaki Cable Television Co.,Inc.	4,096
219.117.128.0/20	AS17691	NDS CO., LTD.	4,096
219.117.48.0/20	AS18092	Kyushu Tele Communications Company	4,096
219.117.160.0/20	AS4721	Jupiter Telecommunications Co., Ltd.	4,096
219.117.8.0/21	AS4721	Jupiter Telecommunications Co., Ltd.	2,048
219.117.52.0/22	AS18092	Sasebo Cable Television	1,024

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

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

IP Address	ASN	Details
219.117.0.1	AS4721 JCOM Co., Ltd.	`2.46ms` from Tokyo, JP
219.117.4.1	AS4721 JCOM Co., Ltd.	`2.38ms` from Tokyo, JP
219.117.5.145	AS4721 JCOM Co., Ltd.	`8.91ms` from Tokyo, JP
219.117.1.41	AS4721 JCOM Co., Ltd.	`11.32ms` from Tokyo, JP
219.117.2.38	AS4721 JCOM Co., Ltd.	`11.07ms` from Tokyo, JP
219.117.7.169	AS4721 JCOM Co., Ltd.	`6.49ms` from Tokyo, JP
219.117.3.245	AS4721 JCOM Co., Ltd.	`11.99ms` from Tokyo, JP
219.117.6.110	AS4721 JCOM Co., Ltd.	`11.97ms` 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
18.223.170.101	AS16509 Amazon.com, Inc.	`0.14ms` from Columbus, US
84.186.86.181	AS3320 Deutsche Telekom AG	`3.25ms` from Frankfurt am Main, DE
188.235.197.37	AS50544 JSC "ER-Telecom Holding"	`1.21ms` from Krasnoyarsk, RU
69.241.23.69	AS7922 Comcast Cable Communications, LLC	`1.61ms` from Minneapolis, US
185.156.76.5	AS206940 Christian Dior Couture SA	`1.06ms` from Paris, FR
34.155.135.53	AS396982 Google LLC	`0.10ms` from Paris, FR
182.37.38.165	AS4134 CHINANET-BACKBONE	`6.04ms` from Qingdao, CN
35.175.182.85	AS14618 Amazon.com, Inc.	`0.42ms` from Reston, US
216.75.55.101	AS10439 CariNet, Inc.	`0.54ms` from San Diego, US
117.184.20.21	AS24400 Shanghai Mobile Communications Co.,Ltd.	`3.57ms` from Shanghai, CN
124.221.38.69	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.32ms` from Shanghai, CN
36.46.131.69	AS134768 CHINANET SHAANXI province Cloud Base network	`3.03ms` from Xi'an, CN
5.74.48.5	AS58224 Iran Telecommunication Company PJS	`17.99ms` from Yerevan, AM
219.243.205.5	AS4538 China Education and Research Network Center	`1.76ms` from Beijing, CN
190.174.131.197	AS22927 Telefonica de Argentina	`2.24ms` from Buenos Aires, AR
186.24.50.197	AS6306 TELEFONICA VENEZOLANA, C.A.	`1.18ms` from Caracas, VE
50.72.33.197	AS6327 Shaw Communications	`19.04ms` from Chicago, US
35.156.85.101	AS16509 Amazon.com, Inc.	`0.12ms` from Frankfurt am Main, DE
18.192.215.197	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
36.72.233.21	AS7713 PT Telekomunikasi Indonesia	`7.55ms` from Jakarta, ID
154.113.4.181	AS37282 Mainone Cable Company	`0.26ms` from Lagos, NG
76.169.132.245	AS20001 Charter Communications Inc	`5.49ms` from Los Angeles, US
13.219.85.85	AS14618 Amazon.com, Inc.	`0.34ms` from Reston, US
119.195.233.165	AS4766 Korea Telecom	`2.20ms` from Seoul, KR
178.29.168.37	AS8434 Telenor Sverige AB	`16.88ms` from Stockholm, SE

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f3 219.117.3.245

traceroute to 219.117.3.245 (219.117.3.245): 64 hops max, 52 byte packets

3 [] 138.199.0.37 0.402 ms

4 *

5 [AS9824] 203.165.0.237 0.939 ms

6 *

7 *

8 *

9 [AS4721] 219.117.3.245 13.557 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On November 22nd 2025

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