203.216.128.0/20

AS4694 · IDC Frontier Inc.

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Summary

Country	Japan
Domain	idcf.jp
ASN	AS4694
Registry	APNIC
ID	TOKYONET

WHOIS Details

inetnum:        203.216.128.0 - 203.216.159.255
netname:        IDCFNet
descr:          IDC Frontier Inc.
descr:          Hibiya Park Front 18F, 2-1-6 Uchisaiwai-cho, Chiyoda-ku, Tokyo, 100-0011, Japan
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
remarks:        Email address for spam or abuse complaints: abuse@idc.jp
country:        JP
mnt-by:         MAINT-JPNIC
mnt-lower:      MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
status:         ALLOCATED PORTABLE
last-modified:  2020-06-12T09:54:03Z
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Urbannet-Kanda Bldg 4F, 3-6-2 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
mnt-by:         MAINT-JPNIC
last-modified:  2017-10-18T10:21:54Z
source:         APNIC

role:           Japan Network Information Center
address:        Urbannet-Kanda Bldg 4F
address:        3-6-2 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:  2012-08-28T07:58:02Z
source:         APNIC

inetnum:        203.216.128.0 - 203.216.159.255
netname:        IDCFNet-CIDR-BLK-JP
descr:          IDC Frontier Inc.
remarks:        Email address for spam or abuse complaints : abuse@idc.jp
country:        JP
admin-c:        JP00169834
tech-c:         JP00169834
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:  2020-06-13T03:15:15Z
source:         JPNIC

Hosted domains

There are 16 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.216.141.142	deooh.org	14
203.216.142.222	scej.jp	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.216.141.130	AS4694 IDC Frontier Inc.	`0.66ms` 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
85.158.177.52	AS45012 dogado GmbH	`0.35ms` from Dortmund, DE
52.156.213.36	AS8075 Microsoft Corporation	`0.14ms` from Dublin, IE
198.166.139.84	AS852 TELUS Communications Inc.	`1.04ms` from Edmonton, CA
91.45.107.244	AS3320 Deutsche Telekom AG	`9.74ms` from Frankfurt am Main, DE
217.235.221.4	AS3320 Deutsche Telekom AG	`5.57ms` from Frankfurt am Main, DE
88.252.13.4	AS9121 Turk Telekomunikasyon Anonim Sirketi	`18.63ms` from Istanbul, TR
34.101.191.36	AS396982 Google LLC	`0.10ms` from Jakarta, ID
46.158.104.164	AS12389 PJSC Rostelecom	`1.28ms` from Krasnodar, RU
172.248.75.132	AS20001 Charter Communications Inc	`6.50ms` from Los Angeles, US
89.130.44.244	AS12479 Orange Espagne SA	`13.65ms` from Madrid, ES
201.157.171.68	AS28376 Gigacable de Aguascalientes, S.A. de C.V.	`10.78ms` from Mexico City, MX
173.168.58.148	AS33363 Charter Communications, Inc	`7.24ms` from Orlando, US
113.153.199.52	AS2516 KDDI CORPORATION	`4.31ms` from Osaka, JP
221.1.90.100	AS4837 CHINA UNICOM China169 Backbone	`6.80ms` from Qingdao, CN
54.146.21.116	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
104.250.74.4	AS15128 Comwave Telecom Inc.	`0.60ms` from Toronto, CA
20.215.34.148	AS8075 Microsoft Corporation	`0.64ms` from Warsaw, PL
86.99.213.244	AS5384 Emirates Internet	`3.20ms` from Al Fujairah City, AE
84.197.26.20	AS6848 Telenet BV	`7.37ms` from Brussels, BE
68.45.248.116	AS7922 Comcast Cable Communications, LLC	`11.50ms` from Chicago, US
185.201.22.84	AS12337 noris network AG	`2.92ms` from Frankfurt am Main, DE
217.238.195.52	AS3320 Deutsche Telekom AG	`4.02ms` from Hamburg, DE
176.224.169.68	AS35819 Etihad Etisalat, a joint stock company	`2.41ms` from Jeddah, SA
213.176.47.36	AS142578 E-Large (HongKong)	`0.22ms` from Los Angeles, US
39.71.73.244	AS4837 CHINA UNICOM China169 Backbone	`6.73ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 -f3 -m7 203.216.136.181

traceroute to 203.216.136.181 (203.216.136.181): 7 hops max, 52 byte packets

3 [AS136106] 103.87.185.97 11.959 ms

4 [AS136106] 123.176.124.30 13.845 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Medan, ID

On August 22nd 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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