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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
209.3.113.133	AS209 CenturyLink Communications, LLC	`2.86ms` from Ashburn, US
73.82.207.101	AS7922 Comcast Cable Communications, LLC	`4.81ms` from Atlanta, US
76.130.217.165	AS7922 Comcast Cable Communications, LLC	`4.58ms` from Denver, US
2.241.59.101	AS6805 Telefonica Germany GmbH & Co.OHG	`1.02ms` from Hamburg, DE
74.124.52.53	AS22442 Phonoscope, Inc.	`1.67ms` from Houston, US
221.147.59.181	AS4766 Korea Telecom	`1.47ms` from Incheon, KR
80.177.65.21	AS5378 Vodafone Limited	`4.54ms` from London, GB
37.120.244.37	AS9009 M247 Europe SRL	`0.35ms` from New York City, US
54.253.52.229	AS16509 Amazon.com, Inc.	`0.15ms` from Sydney, AU
60.76.117.165	AS17676 SoftBank Corp.	`3.08ms` from Tokyo, JP
133.114.128.213	AS2527 Sony Network Communications Inc.	`13.09ms` from Tokyo, JP
163.43.115.117	AS9370 SAKURA Internet Inc.	`0.83ms` from Tokyo, JP
217.154.255.117	AS8560 IONOS SE	`0.57ms` from Berlin, DE
54.187.230.37	AS16509 Amazon.com, Inc.	`0.23ms` from Boardman, US
149.72.39.53	AS11377 SendGrid, Inc.	`0.20ms` from Chicago, US
82.76.239.181	AS8708 DIGI ROMANIA S.A.	`0.83ms` from Constanţa, RO
81.184.119.229	AS6739 Vodafone ONO AS	`14.71ms` from Madrid, ES
170.187.163.133	AS63949 Akamai Connected Cloud	`0.13ms` from Morris Plains, US
95.107.62.69	AS41134 PJSC Rostelecom	`13.14ms` from Moscow, RU
85.142.56.5	AS3267 SCIENTIFIC RESEARCH INSTITUTE FOR SYSTEM ANALYSIS OF THE NATIONAL RESEARCH CENTRE "KURCHATOV INSTITUTE"	`0.70ms` from Saint Petersburg, RU
219.142.107.5	AS4847 China Networks Inter-Exchange	`2.69ms` from Tianjin, CN
109.110.32.117	AS196949 Natalia Sergeevna Filicheva	`1.51ms` from Vladivostok, RU
101.242.255.5	AS17429 BEIJING GEHUA CATV NETWORK CO.LTD	`10.45ms` from Beijing, CN
3.66.104.165	AS16509 Amazon.com, Inc.	`0.34ms` from Frankfurt am Main, DE
93.223.71.21	AS3320 Deutsche Telekom AG	`9.00ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -f3 -m8 157.72.52.76

traceroute to 157.72.52.76 (157.72.52.76): 8 hops max, 52 byte packets

3 [AS3257] 213.39.2.65 0.282 ms

4 *

5 [AS17676] 221.111.203.29 0.703 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On April 13th 2026

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