157.72.176.0/21

AS131932 · JR East Information Systems Company

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Summary

Country	Japan
Domain	japan-telecom.co.jp
ASN	AS131932
Registry	APNIC
ID	JEIS-NET

WHOIS Details

inetnum:        157.72.0.0 - 157.72.255.255
netname:        JEIS-NET
country:        JP
descr:          JR East Information Systems Company
admin-c:        ST67-AP
tech-c:         ST67-AP
status:         ASSIGNED PORTABLE
notify:         odn-admin@odn.ad.jp
mnt-by:         MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
last-modified:  2015-04-22T01:18:01Z
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 2024-11-27
mnt-by:         MAINT-JPNIC
last-modified:  2025-09-04T01:00:00Z
source:         APNIC

person:         Shinji Tsubakino
address:        4-7-1 Hacchobori Chuo-ku, Tokyo, 104-8508
country:        JP
phone:          +81-3-5540-8061
e-mail:         shinji.tsubakino@japan-telecom.co.jp
nic-hdl:        ST67-AP
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        poc-handle:  ST440-ARIN
remarks:        is-role:     N
remarks:        last-name:   Tsubakino
remarks:        first-name:  Shinji
remarks:        street:      4-7-1 Hacchobori Chuo-ku, Tokyo, 104-8508
remarks:        country:     JP
remarks:        mailbox:     shinji.tsubakino@japan-telecom.co.jp
remarks:        bus-phone:   +81-3-5540-8061
remarks:        reg-date:    2000-12-04
remarks:        changed:     hostmaster@arin.poc 20030403
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         shinji.tsubakino@japan-telecom.co.jp
mnt-by:         MNT-ERX-JRESTJPINFSYSCOMP-NON-JP
last-modified:  2008-09-04T07:29:35Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 157.72.0.0/16

No nearby ranges found.

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

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

IP Address	ASN	Details
157.72.176.210	AS131932 JR East Information Systems Company	`1.75ms` 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
193.56.132.85	AS211268 Smartbit CommV	`3.87ms` from Amsterdam, NL
87.156.176.117	AS3320 Deutsche Telekom AG	`4.67ms` from Berlin, DE
94.191.81.165	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.24ms` from Chongqing, CN
35.226.167.133	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
201.130.142.133	AS8151 UNINET	`3.63ms` from Los Angeles, US
64.205.38.149	AS3257 GTT Communications Inc.	`0.53ms` from New York City, US
90.3.2.21	AS3215 Orange S.A.	`2.36ms` from Paris, FR
98.89.104.85	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
213.80.182.101	AS15974 Joint Stock Company TransTeleCom	`16.15ms` from Samara, RU
200.182.179.5	AS4230 CLARO S.A.	`0.71ms` from Sao Paulo, BR
221.168.202.85	AS4766 Korea Telecom	`1.64ms` from Seoul, KR
175.230.41.5	AS4766 Korea Telecom	`3.58ms` from Seoul, KR
221.204.205.21	AS4837 CHINA UNICOM China169 Backbone	`1.74ms` from Taiyuan, CN
62.89.25.85	AS49800 GNC-Alfa CJSC	`0.88ms` from Abovyan, AM
50.96.134.21	AS7029 Windstream Communications LLC	`13.16ms` from Ashburn, US
109.167.21.149	AS29119 AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL	`10.34ms` from Barcelona, ES
111.63.222.5	AS24547 Hebei Mobile Communication Company Limited	`5.41ms` from Beijing, CN
124.170.80.197	AS7545 TPG Telecom Limited	`1.92ms` from Brisbane, AU
119.53.134.165	AS4837 CHINA UNICOM China169 Backbone	`3.56ms` from Changchun, CN
146.139.170.21	AS683 Argonne National Laboratory	`2.32ms` from Chicago, US
169.46.165.181	AS36351 IBM Cloud	`0.86ms` from Dallas, US
135.119.92.85	AS8075 Microsoft Corporation	`0.86ms` from Des Moines, US
168.181.87.5	AS265331 M. R. MELO ALEXANDRINO	`3.20ms` from Fortaleza, BR
14.188.214.5	AS45899 VNPT Corp	`6.25ms` from Hanoi, VN
117.4.156.229	AS7552 Viettel Group	`3.92ms` from Hanoi, VN

Traceroute

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

traceroute -a -n -q1 -f5 -m9 157.72.178.188

traceroute to 157.72.178.188 (157.72.178.188): 9 hops max, 52 byte packets

5 [AS3257] 89.149.140.77 56.259 ms

6 [AS17676] 221.111.203.109 156.126 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in New York City, US

On January 19th 2026

What are IP address ranges?

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