218.219.80.0/21

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:        218.219.80.0 - 218.219.83.255
netname:        JCN-CIDR-BLK-JP
descr:          JCOM Co., Ltd.
remarks:        Email address for spam or abuse complaints : abuse@home.ne.jp
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
last-modified:  2021-09-28T00:04:15Z
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

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

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

IP Address	ASN	Details
218.219.82.232	AS4721 JCOM Co., Ltd.	`0.77ms` from Tokyo, JP
218.219.81.114	AS4721 JCOM Co., Ltd.	`2.02ms` from Tokyo, JP
218.219.86.191	AS4721 JCOM Co., Ltd.	`12.48ms` from Tokyo, JP
218.219.80.136	AS4721 JCOM Co., Ltd.	`0.90ms` from Tokyo, JP
218.219.87.59	AS4721 JCOM Co., Ltd.	`12.10ms` from Tokyo, JP
218.219.85.140	AS4721 JCOM Co., Ltd.	`8.51ms` from Tokyo, JP
218.219.84.1	AS4721 JCOM Co., Ltd.	`2.47ms` 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
35.202.254.117	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
87.79.198.149	AS8422 NetCologne Gesellschaft fur Telekommunikation mbH	`2.65ms` from Duesseldorf, DE
79.225.40.69	AS3320 Deutsche Telekom AG	`5.00ms` from Frankfurt am Main, DE
139.162.180.37	AS63949 Akamai Connected Cloud	`0.12ms` from Frankfurt am Main, DE
222.219.162.165	AS4134 CHINANET-BACKBONE	`3.87ms` from Kunming, CN
178.198.138.69	AS3303 Swisscom (Switzerland) Ltd	`0.84ms` from Lausanne, CH
45.13.192.133	AS51167 Contabo GmbH	`0.13ms` from Lauterbourg, FR
208.98.48.229	AS46844 Sharktech	`6.33ms` from Los Angeles, US
68.60.12.53	AS7922 Comcast Cable Communications, LLC	`8.66ms` from Murfreesboro, US
58.57.241.197	AS4134 CHINANET-BACKBONE	`7.59ms` from Qingdao, CN
27.222.242.197	AS4837 CHINA UNICOM China169 Backbone	`7.28ms` from Qingdao, CN
1.225.51.101	AS9318 SK Broadband Co Ltd	`1.28ms` from Seoul, KR
218.233.207.5	AS9318 SK Broadband Co Ltd	`7.15ms` from Seoul, KR
83.227.79.149	AS8434 Telenor Sverige AB	`0.88ms` from Stockholm, SE
125.196.152.5	AS2518 BIGLOBE Inc.	`13.16ms` from Tokyo, JP
62.47.149.245	AS8447 A1 Telekom Austria AG	`1.54ms` from Vienna, AT
178.42.35.53	AS5617 Orange Polska Spolka Akcyjna	`3.39ms` from Warsaw, PL
113.201.147.197	AS4837 CHINA UNICOM China169 Backbone	`9.47ms` from Xi'an, CN
61.134.171.197	AS4837 CHINA UNICOM China169 Backbone	`11.17ms` from Zhengzhou, CN
129.10.116.53	AS156 Northeastern University	`3.24ms` from Boston, US
175.9.91.53	AS4134 CHINANET-BACKBONE	`4.20ms` from Changsha, CN
204.55.75.229	AS10846 Deere & Company	`4.74ms` from Chicago, US
212.88.113.85	AS20294 MTN Uganda	`0.97ms` from Kampala, UG
67.30.142.69	AS3356 Level 3 Parent, LLC	`0.44ms` from Orlando, US
114.188.127.69	AS4713 NTT DOCOMO BUSINESS,Inc.	`10.72ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 218.219.80.136

traceroute to 218.219.80.136 (218.219.80.136): 64 hops max, 52 byte packets

1 [AS202422] 202.78.167.1 0.211 ms

2 [AS199524] 92.223.63.81 0.129 ms

3 *

4 [] 101.203.89.218 0.627 ms

5 [AS9824] 220.152.46.17 1.063 ms

6 [AS2516] 175.129.17.98 1.229 ms

7 *

8 *

9 [AS4721] 218.219.80.136 1.058 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On March 13th 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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