203.174.88.0/21

AS24290 · Heart Network Co.,LTD

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Summary

Country	Japan
Domain	heartnetwork.jp
ASN	AS24290
Registry	APNIC
ID	HEARTNET

WHOIS Details

inetnum:        203.174.88.0 - 203.174.95.255
netname:        heartnet
descr:          Heart Network Co.,LTD
descr:          2-3-17,Sakaicho,Niihama City,Ehime 792-0812,Japan
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
status:         ALLOCATED PORTABLE
remarks:        Email address for spam or abuse complaints : info@heartnetwork.jp
mnt-by:         MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
mnt-lower:      MAINT-JPNIC
last-modified:  2024-01-16T00:10:03Z
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        hostmaster@nic.ad.jp was validated on 2020-07-23
mnt-by:         MAINT-JPNIC
last-modified:  2022-06-14T04:26:58Z
source:         APNIC

role:           Japan Network Information Center
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2022-01-05T03:04:02Z
source:         APNIC

inetnum:        203.174.88.0 - 203.174.95.255
netname:        heartnet-CIDR-BLK-JP
descr:          Heart Network Co.,LTD
remarks:        Email address for spam or abuse complaints : info@heartnetwork.jp
country:        JP
admin-c:        NI183JP
tech-c:         NI183JP
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)
last-modified:  2024-01-16T17:47:02Z
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 203.174.0.0/16

Range	ASN	Company	Num of IPs
203.174.128.0/18	AS2764	Telecommunications carrier and service provider	16,384
203.174.224.0/19	AS9614	Oita Cable Telecom Co.,Ltd.	8,192
203.174.192.0/19	AS17698	COMMUNITY NETWORK CENTER INC.	8,192
203.174.96.0/19	AS4847	Beijing WangJu Interworking Information Technology Co. LTD	8,192
203.174.96.0/19	AS63647	Beijing WangJu Interworking Information Technology Co. LTD	8,192
203.174.32.0/19	AS9381	HKBN Enterprise Solutions HK Limited	8,192
203.174.64.0/20	AS17707	NHN Techorus Corp.	4,096
203.174.8.0/21	AS24523	PT. Orion Cyber Internet	2,048
203.174.16.0/23	AS154166	PDC Telecommunication Services Sdn. Bhd.	512
203.174.22.0/23	AS154173	Atfenix Data Centre Private Limited	512
203.174.82.0/24	AS38001	Ready Server VPS Hosting	256
203.174.83.0/24	AS38001	Ready Server VPS Hosting	256
203.174.84.0/24	AS38001	NewMedia Express Singapore Internet Service	256
203.174.87.0/24	AS38001	NewMedia Express Singapore Dedicated Server	256
203.174.26.0/24	AS38818	YokozunaNET	256
203.174.7.0/24	AS38834	Nvidia India Network Hub	256
203.174.27.0/24	AS45178	Main Street, House No. 13 Wazir Akbar Khan	256
203.174.4.0/24	AS58519	CHINANET FUJIAN PROVINCE NETWORK	256
203.174.8.0/24	AS24523	PT. Orion Cyber Internet	256
203.174.22.0/24	AS142244	IOTAMINE CLOUD PRIVATE LIMITED	256
203.174.32.0/24	AS24462	The Hong Kong Jockey Club	256
203.174.10.0/24	AS24523	PT. Orion Cyber Internet	256
203.174.11.0/24	AS24523	PT. Orion Cyber Internet	256
203.174.12.0/24	AS24523	PT. Orion Cyber Internet	256
203.174.13.0/24	AS24523	PT. Orion Cyber Internet	256
203.174.14.0/24	AS24523	PT. Orion Cyber Internet	256
203.174.15.0/24	AS24523	PT. Orion Cyber Internet	256
203.174.5.0/24	AS133798	PT XLSMART Telecom Sejahtera Tbk	256
203.174.9.0/24	AS24523	PT. Orion Cyber Internet	256

Hosted domains

There are 41 domain names hosted across 23 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.174.90.10	sogo-juko.jp	8
203.174.90.11	saijo.ne.jp	5
203.174.90.45	niihama-jigenji.jp	3
203.174.90.102	toyo-suzuki.com	3
203.174.95.12	niihama.city	2
203.174.90.60	menbird.jp	2
203.174.90.101	izumi-inc.jp	2
203.174.95.40	sdgslovesaijo.com	1
203.174.95.30	saijo.city	1
203.174.90.53	niihama-kyodo.jp	1
203.174.90.17	bs-tokyo.co.jp	1
203.174.90.25	at-mail.jp	1
203.174.95.47	ncma.art	1
203.174.90.16	kyoei-electron.com	1
203.174.95.85	niihama.info	1
203.174.90.155	md01.net	1
203.174.90.167	md02.net	1
203.174.95.81	e-niihama.jp	1
203.174.95.35	shukatuchihousai.com	1
203.174.90.36	fuguzaku.com	1

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

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

IP Address	ASN	Details
203.174.91.1	AS24290 Heart Network Co.,LTD	`8.78ms` from Osaka, JP
203.174.95.225	AS24290 Heart Network Co.,LTD	`8.33ms` from Osaka, JP
203.174.92.33	AS24290 Heart Network Co.,LTD	`8.32ms` from Osaka, JP
203.174.93.1	AS24290 Heart Network Co.,LTD	`8.43ms` from Osaka, JP
203.174.94.6	AS24290 Heart Network Co.,LTD	`8.36ms` from Osaka, JP
203.174.90.7	AS24290 Heart Network Co.,LTD	`8.39ms` from Osaka, 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
4.152.157.133	AS8075 Microsoft Corporation	`0.18ms` from Boydton, US
23.33.85.245	AS20940 Akamai International B.V.	`1.00ms` from Chicago, US
98.243.32.53	AS7922 Comcast Cable Communications, LLC	`8.53ms` from Flint, US
91.12.68.165	AS3320 Deutsche Telekom AG	`8.99ms` from Frankfurt am Main, DE
86.191.88.181	AS2856 British Telecommunications PLC	`5.87ms` from London, GB
169.231.165.101	AS131 University of California, Santa Barbara	`3.61ms` from Los Angeles, US
76.88.58.229	AS20001 Charter Communications Inc	`6.73ms` from Los Angeles, US
157.175.74.5	AS16509 Amazon.com, Inc.	`0.37ms` from Manama, BH
75.164.240.117	AS209 CenturyLink Communications, LLC	`1.17ms` from Portland, US
181.218.69.53	AS28573 Claro NXT Telecomunicacoes Ltda	`1.91ms` from Porto Alegre, BR
179.210.64.53	AS28573 Claro NXT Telecomunicacoes Ltda	`5.16ms` from Rio de Janeiro, BR
24.171.3.53	AS20115 Charter Communications LLC	`4.18ms` from St. Louis, US
61.69.33.53	AS2764 AAPT Limited	`0.68ms` from Sydney, AU
207.167.243.229	AS852 TELUS Communications Inc.	`0.33ms` from Toronto, CA
91.232.233.5	AS198244 Austrian Power Grid AG	`0.63ms` from Vienna, AT
185.17.162.117	AS199411 Spoldzielnia Mieszkaniowa Metalowiec W Krasniku	`11.76ms` from Warsaw, PL
92.223.126.5	AS199524 G-Core Labs S.A.	`0.11ms` from Amsterdam, NL
134.194.194.69	AS289 Headquarters, USAISC	`2.64ms` from Ashburn, US
189.53.130.149	AS4230 CLARO S.A.	`0.46ms` from Brasilia, BR
87.65.89.245	AS5432 Proximus NV	`3.29ms` from Brussels, BE
197.134.145.165	AS24835 Vodafone Data	`10.22ms` from Cairo, EG
102.165.82.197	AS328278 WiberSolutions (Pty) Ltd	`0.84ms` from Cape Town, ZA
50.171.129.181	AS7922 Comcast Cable Communications, LLC	`1.14ms` from Chicago, US
200.250.91.165	AS4230 CLARO S.A.	`0.68ms` from Curitiba, BR
125.20.226.85	AS9498 BHARTI Airtel Ltd.	`0.84ms` from Delhi, IN

Traceroute

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

traceroute -a -n -q1 -f6 203.174.91.22

traceroute to 203.174.91.22 (203.174.91.22): 64 hops max, 52 byte packets

6 [AS16509] 99.83.70.32 1.07 ms

7 [AS16509] 99.83.70.33 0.328 ms

8 [AS9824] 116.214.18.49 0.746 ms

9 *

10 *

11 *

12 [AS24290] 203.174.91.22 10.324 ms

Measurement taken from

IPinfo ProbeNet in Osaka, JP

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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