203.223.56.0/22

AS17955 · Densan Co., Ltd.

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Summary

Country	Japan
Domain	ndensan.co.jp
ASN	AS17955
Parent Range	203.223.48.0/20
Registry	JPNIC
ID	MTV-AREA-B1

WHOIS Details

inetnum:        203.223.56.0 - 203.223.59.255
netname:        MTV-AREA-B1
descr:          Densan Co., Ltd.
country:        JP
admin-c:        JP00006149
tech-c:         JP00006149
last-modified:  2007-03-30T21:53:07Z
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 203.223.56.0/22

Range	ASN	Company	Num of IPs
203.223.48.0/20	AS17955	DENSAN CO., LTD.	4,096

Nearby Ranges

BGP prefixes that overlap with 203.223.0.0/16

Range	ASN	Company	Num of IPs
203.223.96.0/19	AS18313	LG HelloVision Corp.	8,192
203.223.128.0/19	AS24218	Global Transit Communications, Malaysia, Networks - 203.223.128.0/19	8,192
203.223.96.0/19	AS38091	LG HelloVision Corp.	8,192
203.223.32.0/20	AS17726	Ministry of Posts and Telecommunication Cambodia(MPTC)	4,096
203.223.48.0/20	AS17955	DENSAN CO., LTD.	4,096
203.223.160.0/20	AS23966	LINKdotNET Telecom Limited	4,096
203.223.24.0/21	AS9999	AT TOKYO Corporation	2,048
203.223.180.0/22	AS17698	COMMUNITY NETWORK CENTER INC.	1,024
203.223.36.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.37.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.38.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.39.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.40.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.41.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.17.0/24	AS136167	CHINA TELECOM(MACAU) COMPANY LIMITED	256
203.223.43.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.44.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.45.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.46.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.47.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.96.0/24	AS18313	HVBuk-incheon	256
203.223.176.0/24	AS45636	Videocon d2h Limited	256
203.223.178.0/24	AS45640	Suite 1301, Chater House	256
203.223.177.0/24	AS4766	Ulsan education Science research institute	256
203.223.42.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.18.0/24	AS136167	CHINA TELECOM(MACAU) COMPANY LIMITED	256
203.223.19.0/24	AS136167	CHINA TELECOM(MACAU) COMPANY LIMITED	256
203.223.20.0/24	AS136167	CHINA TELECOM(MACAU) COMPANY LIMITED	256
203.223.179.0/24	AS151833	Level 5, 355 Spencer Street	256
203.223.32.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.33.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.34.0/24	AS17726	Telecom Cambodia (T.C.)	256
203.223.35.0/24	AS17726	Telecom Cambodia (T.C.)	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.223.57.126	AS17955 Densan Co., Ltd.	`8.76ms` from Tokyo, JP
203.223.59.1	AS17955 Densan Co., Ltd.	`4.58ms` from Tokyo, JP
203.223.56.204	AS17955 Densan Co., Ltd.	`4.19ms` 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
31.160.212.6	AS1136 KPN B.V.	`0.47ms` from Amsterdam, NL
96.68.252.38	AS7922 Comcast Cable Communications, LLC	`7.28ms` from Ashburn, US
136.57.26.150	AS16591 Google Fiber Inc.	`5.34ms` from Atlanta, US
141.134.212.182	AS6848 Telenet BV	`7.08ms` from Brussels, BE
2.166.196.150	AS3320 Deutsche Telekom AG	`11.69ms` from Frankfurt am Main, DE
187.213.59.70	AS8151 UNINET	`0.94ms` from Guadalajara, MX
96.77.135.166	AS7922 Comcast Cable Communications, LLC	`8.69ms` from Houston, US
188.244.141.246	AS15774 Limited Liability Company "TTK-Svyaz"	`16.58ms` from Khabarovsk, RU
107.195.47.70	AS7018 AT&T Enterprises, LLC	`17.17ms` from Los Angeles, US
99.111.97.22	AS7018 AT&T Enterprises, LLC	`4.21ms` from Los Angeles, US
151.51.6.246	AS1267 WIND TRE S.P.A.	`8.85ms` from Milan, IT
46.56.163.54	AS42772 Unitary enterprise A1	`0.55ms` from Minsk, BY
95.79.81.134	AS42682 JSC ER-Telecom Holding	`6.39ms` from Moscow, RU
52.148.153.6	AS8075 Microsoft Corporation	`0.32ms` from Quincy, US
149.57.207.6	AS215071 Server Switch Limited	`0.25ms` from Amsterdam, NL
41.137.36.230	AS36884 Wana Corporate	`3.39ms` from Casablanca, MA
209.122.39.214	AS6079 RCN	`4.75ms` from Chicago, US
75.196.68.70	AS6167 Verizon Business	`13.92ms` from Chicago, US
70.74.230.70	AS6327 Shaw Communications	`7.09ms` from Edmonton, CA
63.222.0.134	AS3491 PCCW Global, Inc.	`0.29ms` from Frankfurt am Main, DE
110.90.6.198	AS4134 CHINANET-BACKBONE	`3.15ms` from Fuzhou, CN
49.131.19.70	AS17924 SmarTone Mobile Communications Ltd	`16.60ms` from Hong Kong, HK
61.155.138.150	AS140292 CHINATELECOM Jiangsu province Suzhou 5G network	`5.77ms` from Huai'an, CN
110.9.78.182	AS9318 SK Broadband Co Ltd	`1.03ms` from Incheon, KR
161.97.97.134	AS51167 Contabo GmbH	`0.26ms` from Lauterbourg, FR

Traceroute

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

traceroute -a -n -q1 -f5 -m8 203.223.58.237

traceroute to 203.223.58.237 (203.223.58.237): 8 hops max, 52 byte packets

5 [AS6939] 216.66.1.133 0.993 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Piscataway, US

On February 7th 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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