157.72.56.0/21

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
119.48.122.197	AS4837 CHINA UNICOM China169 Backbone	`1.23ms` from Changchun, CN
34.16.85.181	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
89.42.43.117	AS199508 S1 Networks Oy	`0.47ms` from Helsinki, FI
113.183.145.245	AS45899 VNPT Corp	`3.85ms` from Ho Chi Minh City, VN
82.148.57.229	AS12519 FastNet International Ltd	`4.88ms` from London, GB
77.44.65.5	AS5413 Wavenet Limited	`2.00ms` from London, GB
97.163.91.245	AS6167 Verizon Business	`15.31ms` from Miami, US
188.13.223.197	AS3269 Telecom Italia S.p.A.	`12.50ms` from Milan, IT
36.151.78.181	AS56046 China Mobile communications corporation	`4.15ms` from Nanjing, CN
207.201.193.5	AS395942 PODS Enterprises, LLC	`5.51ms` from Orlando, US
49.135.97.85	AS2516 KDDI CORPORATION	`17.73ms` from Osaka, JP
89.85.51.21	AS5410 Bouygues Telecom SA	`6.64ms` from Paris, FR
179.55.116.21	AS26615 TIM S/A	`2.62ms` from Sao Paulo, BR
208.98.243.197	AS6327 Shaw Communications	`3.98ms` from Seattle, US
220.88.160.213	AS4766 Korea Telecom	`1.58ms` from Seoul, KR
180.169.239.213	AS4812 China Telecom (Group)	`2.89ms` from Shanghai, CN
61.69.53.133	AS2764 AAPT Limited	`0.67ms` from Sydney, AU
60.222.249.165	AS4837 CHINA UNICOM China169 Backbone	`8.66ms` from Taiyuan, CN
42.85.243.21	AS4837 CHINA UNICOM China169 Backbone	`9.50ms` from Tieling, CN
202.234.167.53	AS4694 IDC Frontier Inc.	`0.68ms` from Tokyo, JP
23.211.46.21	AS16625 Akamai Technologies, Inc.	`0.21ms` from Warsaw, PL
77.161.113.5	AS1136 KPN B.V.	`1.10ms` from Amsterdam, NL
66.0.232.213	AS7029 Windstream Communications LLC	`8.00ms` from Atlanta, US
186.82.77.21	AS10620 Telmex Colombia S.A.	`5.15ms` from Bogota, CO
217.119.121.229	AS31117 ENERGOTEL a.s.	`2.77ms` from Bratislava, SK

Traceroute

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

traceroute -a -n -q1 -f2 -m10 157.72.62.64

traceroute to 157.72.62.64 (157.72.62.64): 10 hops max, 52 byte packets

2 [AS12186] 192.189.65.209 0.298 ms

3 [AS32097] 69.30.200.141 0.458 ms

4 *

5 [AS174] 154.54.90.249 2.664 ms

6 [AS174] 154.54.95.241 7.435 ms

7 [AS174] 154.54.90.182 11.68 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Kansas City, US

On January 19th 2026

What are IP address ranges?

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