157.72.172.0/22

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
15.197.65.86	AS16509 Amazon.com, Inc.	`0.03ms` from Bangkok, TH
14.143.167.134	AS4755 TATA Communications formerly VSNL is Leading ISP	`0.55ms` from Chennai, IN
58.237.19.134	AS9318 SK Broadband Co Ltd	`5.65ms` from Incheon, KR
217.45.41.70	AS2856 British Telecommunications PLC	`5.26ms` from London, GB
51.52.115.230	AS31655 Gamma Telecom Holdings Ltd	`3.27ms` from London, GB
178.20.79.166	AS203489 WiMore S.r.l.	`1.88ms` from Milan, IT
210.165.65.118	AS2514 NTT PC Communications, Inc.	`2.11ms` from Osaka, JP
210.132.154.22	AS2527 Sony Network Communications Inc.	`8.84ms` from Osaka, JP
123.135.41.134	AS4837 CHINA UNICOM China169 Backbone	`6.86ms` from Qingdao, CN
73.221.216.38	AS7922 Comcast Cable Communications, LLC	`5.83ms` from Seattle, US
3.175.254.86	AS16509 Amazon.com, Inc.	`1.00ms` from Tokyo, JP
13.225.24.6	AS16509 Amazon.com, Inc.	`3.29ms` from Amsterdam, NL
24.98.155.166	AS7922 Comcast Cable Communications, LLC	`4.98ms` from Atlanta, US
50.199.246.118	AS7922 Comcast Cable Communications, LLC	`6.16ms` from Boston, US
197.55.76.70	AS8452 TE-AS	`8.50ms` from Cairo, EG
99.135.53.246	AS7018 AT&T Enterprises, LLC	`6.49ms` from Columbus, US
12.119.196.6	AS7018 AT&T Enterprises, LLC	`8.31ms` from Dallas, US
93.210.7.118	AS3320 Deutsche Telekom AG	`9.10ms` from Frankfurt am Main, DE
149.81.124.214	AS36351 IBM Cloud	`0.47ms` from Frankfurt am Main, DE
194.230.243.166	AS6730 Sunrise GmbH	`1.54ms` from Geneve, CH
116.103.110.134	AS7552 Viettel Group	`0.19ms` from Ho Chi Minh City, VN
60.170.162.6	AS4134 CHINANET-BACKBONE	`8.52ms` from Huai'an, CN
81.157.202.198	AS2856 British Telecommunications PLC	`1.61ms` from London, GB
109.109.139.6	AS205072 Layershift Limited	`0.44ms` from Manchester, GB
181.128.198.166	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`2.29ms` from Medellin, CO

Traceroute

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

traceroute -a -n -q1 -f2 -m6 157.72.172.112

traceroute to 157.72.172.112 (157.72.172.112): 6 hops max, 52 byte packets

2 [AS37684] 41.242.0.246 0.239 ms

3 [AS37100] 105.21.42.57 1.333 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Nairobi, KE

On January 19th 2026

What are IP address ranges?

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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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