218.219.88.0/21

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:        218.219.88.0 - 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

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

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

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

IP Address	ASN	Details
218.219.92.1	AS4721 JCOM Co., Ltd.	`4.11ms` 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
218.219.93.25	AS4721 JCOM Co., Ltd.	`9.57ms` 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
162.39.51.69	AS7029 Windstream Communications LLC	`0.46ms` from Atlanta, US
132.177.100.37	AS11745 University System of New Hampshire	`4.24ms` from Boston, US
18.189.85.69	AS16509 Amazon.com, Inc.	`0.11ms` from Columbus, US
93.192.54.197	AS3320 Deutsche Telekom AG	`7.08ms` from Duesseldorf, DE
77.0.204.165	AS6805 Telefonica Germany GmbH & Co.OHG	`2.10ms` from Hamburg, DE
89.115.74.213	AS12353 Vodafone Portugal	`2.09ms` from Lisbon, PT
204.237.210.165	AS3257 GTT Communications Inc.	`0.51ms` from Los Angeles, US
12.67.119.53	AS7018 AT&T Enterprises, LLC	`2.93ms` from Miami, US
67.214.233.197	AS13415 FirstDigital Communications, LLC	`0.82ms` from Salt Lake City, US
114.16.65.181	AS2516 KDDI CORPORATION	`7.49ms` from Tokyo, JP
24.214.0.133	AS12083 WideOpenWest Finance LLC	`3.10ms` from Atlanta, US
111.33.17.5	AS38019 tianjin Mobile Communication Company Limited	`6.19ms` from Beijing, CN
120.3.216.197	AS4837 CHINA UNICOM China169 Backbone	`10.75ms` from Beijing, CN
73.186.201.101	AS7922 Comcast Cable Communications, LLC	`5.60ms` from Boston, US
162.191.162.181	AS21928 T-Mobile USA, Inc.	`18.27ms` from Chicago, US
72.20.186.133	AS53846 Uniti Fiber Holdings Inc.	`0.18ms` from Dallas, US
106.202.253.85	AS24560 Bharti Airtel Ltd., Telemedia Services	`10.05ms` from Delhi, IN
69.39.16.117	AS21803 Cedar Networks	`9.01ms` from Denver, US
192.64.32.53	AS22878 ACENET, INC.	`0.23ms` from Detroit, US
93.204.146.213	AS3320 Deutsche Telekom AG	`2.42ms` from Hamburg, DE
123.27.199.37	AS45899 VNPT Corp	`5.11ms` from Hanoi, VN
1.224.2.229	AS9277 SK Broadband Co Ltd	`1.42ms` from Incheon, KR
134.204.123.245	AS16504 Granite Telecommunications LLC	`1.01ms` from Los Angeles, US
76.168.37.85	AS20001 Charter Communications Inc	`5.74ms` from Los Angeles, US
90.65.73.53	AS3215 Orange S.A.	`7.19ms` from Marseille, FR

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.

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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