157.72.48.0/21

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

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

IP Address	ASN	Details
157.72.48.242	AS131932 JR East Information Systems Company	`1.78ms` 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
23.122.204.229	AS7018 AT&T Enterprises, LLC	`11.03ms` from Atlanta, US
105.159.23.21	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`7.56ms` from Casablanca, MA
104.9.13.197	AS7018 AT&T Enterprises, LLC	`3.49ms` from Dallas, US
103.215.79.101	AS400619 AROSSCLOUD INC.	`1.52ms` from Hong Kong, HK
88.226.69.5	AS9121 Turk Telekomunikasyon Anonim Sirketi	`11.81ms` from Istanbul, TR
101.181.128.213	AS1221 Telstra Limited	`1.78ms` from Melbourne, AU
104.56.91.37	AS7018 AT&T Enterprises, LLC	`7.84ms` from Miami, US
74.58.112.69	AS5769 Videotron Ltee	`9.07ms` from Montreal, CA
5.166.73.69	AS50512 JSC ER-Telecom Holding	`5.62ms` from Novosibirsk, RU
58.209.32.69	AS140292 CHINATELECOM Jiangsu province Suzhou 5G network	`7.26ms` from Shanghai, CN
69.36.103.245	AS21723 GOCO TECHNOLOGY LIMITED PARTNERSHIP	`9.77ms` from Vancouver, CA
83.215.135.85	AS8445 SALZBURG AG fur Energie, Verkehr und Telekommunikation	`9.21ms` from Vienna, AT
95.160.48.245	AS29314 VECTRA S.A.	`15.41ms` from Warsaw, PL
123.112.63.85	AS4808 China Unicom Beijing Province Network	`3.45ms` from Beijing, CN
181.49.220.133	AS14080 Telmex Colombia S.A.	`1.38ms` from Bogotá, CO
172.206.47.213	AS8075 Microsoft Corporation	`0.61ms` from Boydton, US
91.183.94.5	AS5432 Proximus NV	`1.40ms` from Brussels, BE
177.125.17.229	AS262332 AGI Informática Ltda ME	`7.44ms` from Chapeco, BR
154.209.138.197	AS44559 IT HOSTLINE LTD	`0.15ms` from Coventry, GB
50.58.7.133	AS3549 Level 3 Parent, LLC	`0.49ms` from Dallas, US
162.229.66.181	AS7018 AT&T Enterprises, LLC	`2.22ms` from Dallas, US
150.5.14.149	AS60294 Deutsche Glasfaser Wholesale GmbH	`1.40ms` from Duesseldorf, DE
95.208.65.165	AS3209 Vodafone GmbH	`10.73ms` from Frankfurt am Main, DE
212.227.224.5	AS8560 IONOS SE	`0.42ms` from Frankfurt am Main, DE
113.175.193.197	AS45899 VNPT Corp	`4.33ms` 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 -f4 -m7 157.72.54.143

traceroute to 157.72.54.143 (157.72.54.143): 7 hops max, 52 byte packets

4 [AS395954] 172.255.243.1 5.588 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Bologna, IT

On December 28th 2025

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