203.183.144.0/21

AS4694 · IDC Frontier Inc.

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Summary

Country	Japan
Domain	link-u.co.jp
ASN	AS4694
Registry	JPNIC
ID	AT-LINKNET

WHOIS Details

inetnum:        203.183.144.128 - 203.183.144.255
netname:        AT-LINKNET
descr:          LINK, Inc.
country:        JP
admin-c:        GO004JP
tech-c:         YI1082JP
last-modified:  2012-12-05T17:36:33Z
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

Hosted domains

There are 279 domain names hosted across 124 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.183.145.229	lpro-mail.com	19
203.183.146.90	bousai-kids.jp	17
203.183.146.72	nishikawa-nemrium.jp	12
203.183.146.60	tokusukekun.jp	6
203.183.146.91	hxf.jp	4
203.183.146.18	medical-epilation.clinic	3
203.183.145.199	rakuraku-worklife.com	3
203.183.145.242	sharesharemail.net	3
203.183.145.143	w1thy0u.com	3
203.183.145.205	koun-wa.com	3
203.183.146.53	tofleinternational.com	2
203.183.145.223	cupidtalkmail24.net	2
203.183.145.176	nishimori-mphss.com	2
203.183.145.224	moremorelove.net	2
203.183.145.177	linkre-af.com	2
203.183.146.56	senden.co.jp	2
203.183.145.162	kamuire-ss.com	2
203.183.145.170	sakai-victorss.com	2
203.183.145.234	enmusubimail000.com	2
203.183.145.172	sato-regaing.com	2

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

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Pingable IPs

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

IP Address	ASN	Details
203.183.147.252	AS4694 IDC Frontier Inc.	`0.93ms` from Tokyo, JP
203.183.151.106	AS4694 IDC Frontier Inc.	`0.64ms` from Tokyo, JP
203.183.146.5	AS4694 IDC Frontier Inc.	`0.63ms` from Tokyo, JP
203.183.145.83	AS4694 IDC Frontier Inc.	`0.80ms` from Tokyo, JP
203.183.150.1	AS4694 IDC Frontier Inc.	`1.42ms` from Tokyo, JP
203.183.149.1	AS4694 IDC Frontier Inc.	`1.52ms` 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
76.97.232.21	AS7922 Comcast Cable Communications, LLC	`5.20ms` from Atlanta, US
61.148.177.5	AS4808 China Unicom Beijing Province Network	`2.42ms` from Beijing, CN
207.96.37.181	AS6079 RCN	`3.73ms` from Chicago, US
178.30.251.37	AS2119 Telenor Norge AS	`19.46ms` from Copenhagen, DK
34.128.81.133	AS396982 Google LLC	`0.09ms` from Jakarta, ID
202.152.61.101	AS4800 PT Aplikanusa Lintasarta	`0.97ms` from Jakarta, ID
96.30.62.133	AS32244 Liquid Web, L.L.C	`0.30ms` from Lansing, US
83.174.10.69	AS12353 Vodafone Portugal	`1.30ms` from Lisbon, PT
90.212.45.229	AS5607 Sky UK Limited	`10.25ms` from London, GB
85.60.114.117	AS12479 Orange Espagne SA	`7.42ms` from Madrid, ES
149.71.103.213	AS212087 JOTELULU S.L.	`0.80ms` from Madrid, ES
176.214.156.165	AS59713 JSC "ER-Telecom Holding"	`7.49ms` from Moscow, RU
210.234.250.37	AS2516 KDDI CORPORATION	`0.60ms` from Osaka, JP
82.142.144.133	AS3216 PJSC "Vimpelcom"	`0.31ms` from Samara, RU
46.191.255.229	AS41704 JSC "Ufanet"	`11.45ms` from Samara, RU
1.173.155.197	AS3462 Data Communication Business Group	`4.23ms` from Taichung, TW
110.156.68.37	AS4134 CHINANET-BACKBONE	`9.11ms` from UEruemqi, CN
115.48.153.85	AS4837 CHINA UNICOM China169 Backbone	`7.71ms` from Zhengzhou, CN
108.79.31.213	AS7018 AT&T Enterprises, LLC	`1.86ms` from Atlanta, US
45.64.61.181	AS132692 GlobiCom Limited	`0.30ms` from Auckland, NZ
83.89.207.197	AS3292 TDC Holding A/S	`0.83ms` from Copenhagen, DK
144.41.34.37	AS553 BelWue-Koordination	`3.65ms` from Frankfurt am Main, DE
92.157.202.85	AS3215 Orange S.A.	`5.12ms` from Lyon, FR
20.190.111.245	AS8075 Microsoft Corporation	`0.53ms` from Melbourne, AU
35.152.198.101	AS16509 Amazon.com, Inc.	`0.14ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 -f5 203.183.151.2

traceroute to 203.183.151.2 (203.183.151.2): 64 hops max, 52 byte packets

5 [] 101.203.88.56 0.45 ms

6 *

7 *

8 *

9 [AS4694] 203.183.151.2 2.686 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On August 23rd 2025

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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