220.208.64.0/19

AS4721 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS4721
Parent Range	220.208.64.0/18
Registry	JPNIC
ID	JCOM-NET

WHOIS Details

inetnum:        220.208.64.0 - 220.208.95.255
netname:        JCOM-NET
descr:          Jupiter Telecommunications Co., Ltd.
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
last-modified:  2015-12-26T01:53:05Z
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 220.208.64.0/19

Range	ASN	Company	Num of IPs
220.208.64.0/18	AS4721	JCOM Co., Ltd.	16,384

Nearby Ranges

BGP prefixes that overlap with 220.208.0.0/16

Range	ASN	Company	Num of IPs
220.208.64.0/18	AS4721	JCOM Co., Ltd.	16,384
220.208.128.0/18	AS18282	Tonami System Solutions Co., Ltd.	16,384
220.208.192.0/19	AS2497	Internet Initiative Japan Inc.	8,192
220.208.224.0/19	AS17698	COMMUNITY NETWORK CENTER INC.	8,192
220.208.0.0/19	AS7522	Pikara(STNet, Incorporated)	8,192
220.208.32.0/19	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	8,192

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

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

IP Address	ASN	Details
220.208.73.88	AS4721 JCOM Co., Ltd.	`7.60ms` from Tokyo, JP
220.208.77.51	AS4721 JCOM Co., Ltd.	`9.27ms` from Tokyo, JP
220.208.75.145	AS4721 JCOM Co., Ltd.	`11.18ms` from Tokyo, JP
220.208.70.235	AS4721 JCOM Co., Ltd.	`10.85ms` from Tokyo, JP
220.208.65.1	AS4721 JCOM Co., Ltd.	`1.92ms` from Tokyo, JP
220.208.76.1	AS4721 JCOM Co., Ltd.	`2.71ms` from Tokyo, JP
220.208.80.1	AS4721 JCOM Co., Ltd.	`5.44ms` from Tokyo, JP
220.208.68.1	AS4721 JCOM Co., Ltd.	`2.47ms` from Tokyo, JP
220.208.78.30	AS4721 JCOM Co., Ltd.	`11.71ms` from Tokyo, JP
220.208.79.22	AS4721 JCOM Co., Ltd.	`11.61ms` from Tokyo, JP
220.208.67.126	AS4721 JCOM Co., Ltd.	`12.69ms` from Tokyo, JP
220.208.69.233	AS4721 JCOM Co., Ltd.	`11.03ms` from Tokyo, JP
220.208.66.1	AS4721 JCOM Co., Ltd.	`3.35ms` from Tokyo, JP
220.208.72.1	AS4721 JCOM Co., Ltd.	`2.32ms` from Tokyo, JP
220.208.74.29	AS4721 JCOM Co., Ltd.	`12.13ms` from Tokyo, JP
220.208.71.245	AS4721 JCOM Co., Ltd.	`11.89ms` from Tokyo, JP
220.208.64.129	AS4721 JCOM Co., Ltd.	`2.32ms` from Tokyo, JP
220.208.84.1	AS4721 JCOM Co., Ltd.	`3.24ms` from Tokyo, JP
220.208.93.141	AS4721 JCOM Co., Ltd.	`12.04ms` from Tokyo, JP
220.208.88.1	AS4721 JCOM Co., Ltd.	`2.79ms` from Tokyo, JP
220.208.95.73	AS4721 JCOM Co., Ltd.	`14.59ms` from Tokyo, JP
220.208.94.168	AS4721 JCOM Co., Ltd.	`12.03ms` from Tokyo, JP
220.208.92.1	AS4721 JCOM Co., Ltd.	`2.91ms` 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
213.197.30.131	AS1136 KPN B.V.	`2.48ms` from Amsterdam, NL
64.251.172.19	AS6580 Golden West Telecommunications Coop., Inc.	`11.71ms` from Denver, US
86.44.239.67	AS5466 Eircom Limited	`3.18ms` from Dublin, IE
220.161.103.227	AS4134 CHINANET-BACKBONE	`3.80ms` from Fuzhou, CN
220.64.14.3	AS9457 DREAMLINE CO.	`1.61ms` from Incheon, KR
70.187.215.19	AS22773 Cox Communications Inc.	`5.03ms` from Los Angeles, US
68.33.242.83	AS7922 Comcast Cable Communications, LLC	`11.70ms` from Manassas, US
2.36.162.211	AS30722 Fastweb SpA	`3.86ms` from Milan, IT
90.21.37.243	AS3215 Orange S.A.	`12.94ms` from Paris, FR
202.99.155.35	AS4837 CHINA UNICOM China169 Backbone	`13.13ms` from Qingdao, CN
3.229.62.147	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
166.164.115.211	AS6167 Verizon Business	`19.82ms` from Santa Clara, US
71.227.220.83	AS7922 Comcast Cable Communications, LLC	`7.22ms` from Seattle, US
59.166.198.3	AS9824 JCOM Co., Ltd.	`10.91ms` from Tokyo, JP
38.15.149.19	AS55286 B2 Net Solutions Inc.	`18.94ms` from Toronto, CA
41.32.9.99	AS8452 TE-AS	`3.60ms` from Cairo, EG
76.182.75.243	AS11426 Charter Communications Inc	`10.11ms` from Charlotte, US
71.71.78.51	AS11426 Charter Communications Inc	`7.45ms` from Charlotte, US
149.32.12.3	AS26577 BAE Systems Inc.	`2.56ms` from Dallas, US
104.143.91.3	AS62874 Web2Objects LLC	`0.28ms` from Dallas, US
40.86.119.211	AS8075 Microsoft Corporation	`0.16ms` from Des Moines, US
34.141.37.19	AS396982 Google LLC	`0.10ms` from Frankfurt am Main, DE
13.70.55.3	AS8075 Microsoft Corporation	`0.58ms` from Hong Kong, HK
123.141.106.131	AS3786 LG DACOM Corporation	`1.86ms` from Incheon, KR
86.156.121.243	AS2856 British Telecommunications PLC	`2.42ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f5 220.208.73.88

traceroute to 220.208.73.88 (220.208.73.88): 64 hops max, 52 byte packets

5 [AS5580] 203.190.230.37 1.059 ms

6 [AS9824] 203.165.0.53 1.115 ms

7 *

8 *

9 *

10 [AS4721] 220.208.73.88 20.88 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

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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