218.219.80.0/20

AS4721 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS4721
Registry	JPNIC
ID	JCN-CIDR-BLK-JP

WHOIS Details

inetnum:        218.219.88.0 - 218.219.95.255
netname:        JCN-CIDR-BLK-JP
descr:          JCOM Co., Ltd.
remarks:        Email address for spam or abuse complaints : [email protected]
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
last-modified:  2021-09-28T00:04:56Z
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 are contained by 218.219.80.0/20

Range	ASN	Company	Num of IPs
218.219.88.0/21	AS4721	JCOM Co., Ltd.	2,048

Nearby Ranges

BGP prefixes that overlap with 218.219.0.0/16

Range	ASN	Company	Num of IPs
218.219.0.0/18	AS10010	TOKAI Communications Corporation	16,384
218.219.192.0/18	AS4685	Asahi Net	16,384
218.219.160.0/19	AS17961	mitene internet co.,ltd.	8,192
218.219.96.0/19	AS7679	QTnet,Inc.	8,192
218.219.32.0/20	AS10010	TOKAI Communications Corporation	4,096
218.219.64.0/20	AS15830	Equinix Japan Enterprise K.K.	4,096
218.219.88.0/21	AS4721	JCOM 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

Read more

Pingable IPs

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

IP Address	ASN	Details
218.219.86.191	AS4721 JCOM Co., Ltd.	`6.09ms` from Tokyo, JP
218.219.87.101	AS4721 JCOM Co., Ltd.	`12.31ms` from Tokyo, JP
218.219.92.1	AS4721 JCOM Co., Ltd.	`4.11ms` from Tokyo, JP
218.219.85.30	AS4721 JCOM Co., Ltd.	`12.85ms` from Tokyo, JP
218.219.94.148	AS4721 JCOM Co., Ltd.	`9.60ms` from Tokyo, JP
218.219.95.37	AS4721 JCOM Co., Ltd.	`14.25ms` from Tokyo, JP
218.219.84.1	AS4721 JCOM Co., Ltd.	`3.73ms` from Tokyo, JP
218.219.93.25	AS4721 JCOM Co., Ltd.	`9.57ms` from Tokyo, JP
218.219.81.114	AS4721 JCOM Co., Ltd.	`2.00ms` from Tokyo, JP
218.219.80.136	AS4721 JCOM Co., Ltd.	`0.86ms` from Tokyo, JP
218.219.82.232	AS4721 JCOM Co., Ltd.	`0.73ms` 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
212.117.189.84	AS7979 Servers.com, Inc.	`0.21ms` from Amsterdam, NL
108.51.55.228	AS701 Verizon Business	`1.98ms` from Ashburn, US
52.80.226.4	AS55960 Beijing Guanghuan Xinwang Digital	`3.50ms` from Beijing, CN
35.162.221.4	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
190.242.98.132	AS262191 LIBERTY NETWORKS DE COLOMBIA S.A.S	`0.60ms` from Bogota, CO
43.136.128.20	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.78ms` from Chengdu, CN
175.178.108.116	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.00ms` from Guangzhou, CN
20.255.117.20	AS8075 Microsoft Corporation	`0.31ms` from Hong Kong, HK
103.18.168.68	AS23860 Alliance Broadband Services Pvt. Ltd.	`16.52ms` from Kolkata, IN
113.197.117.20	AS38260 Transaction Network Services AS for Asia Pac	`1.81ms` from Kuala Lumpur, MY
192.228.149.148	AS9930 TTNET-MY	`2.11ms` from Kuala Lumpur, MY
84.136.144.68	AS3320 Deutsche Telekom AG	`5.29ms` from Nuernberg, DE
90.20.218.4	AS3215 Orange S.A.	`17.52ms` from Paris, FR
166.49.143.244	AS5400 British Telecommunications PLC	`1.09ms` from Paris, FR
162.144.155.116	AS46606 Unified Layer	`1.99ms` from Salt Lake City, US
184.72.37.164	AS16509 Amazon.com, Inc.	`0.15ms` from San Jose, US
211.230.234.212	AS4766 Korea Telecom	`4.43ms` from Seoul, KR
218.54.93.132	AS9318 SK Broadband Co Ltd	`5.59ms` from Seoul, KR
211.231.96.4	AS10158 Kakao Corp	`1.25ms` from Singapore, SG
179.117.103.228	AS26599 TELEFÔNICA BRASIL S.A	`8.57ms` from São Paulo, BR
18.176.202.36	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
104.198.114.196	AS396982 Google LLC	`0.14ms` from Tokyo, JP
69.156.56.116	AS577 Bell Canada	`1.62ms` from Toronto, CA
188.18.37.244	AS12389 PJSC Rostelecom	`0.75ms` from Yekaterinburg, RU
42.237.81.132	AS4837 CHINA UNICOM China169 Backbone	`4.28ms` from Zhengzhou, CN

Traceroute

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

traceroute -a -n -q1 -m5 218.219.91.15

traceroute to 218.219.91.15 (218.219.91.15): 5 hops max, 52 byte packets

1 [AS263812] 38.165.233.1 0.067 ms

2 [AS52468] 181.78.95.209 3.319 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Asuncion, PY

On January 30th 2026

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.

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