157.71.84.0/23

AS131932 · JR East Information Systems Company

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Summary

Country	Japan
Domain	sekidoko.jp
ASN	AS131932
Registry	APNIC
ID	JEIS-NET

WHOIS Details

inetnum:        157.71.0.0 - 157.71.255.255
netname:        JEIS-NET
country:        JP
descr:          JR East Information Systems Company
admin-c:        ST60-AP
tech-c:         ST60-AP
status:         ASSIGNED PORTABLE
notify:         nic@spin.ad.jp
mnt-by:         MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
last-modified:  2015-04-21T01:00:02Z
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:        ST60-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 157.71.0.0/16

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
104.52.74.215	AS7018 AT&T Enterprises, LLC	`8.56ms` from Columbus, US
133.17.170.135	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`12.48ms` from Osaka, JP
60.68.226.231	AS17676 SoftBank Corp.	`2.75ms` from Tokyo, JP
99.248.235.23	AS812 Rogers Communications Canada Inc.	`4.16ms` from Toronto, CA
155.190.67.23	AS36692 Cisco OpenDNS, LLC	`0.71ms` from Amsterdam, NL
52.227.21.215	AS8075 Microsoft Corporation	`0.59ms` from Boydton, US
23.58.1.183	AS16625 Akamai Technologies, Inc.	`0.12ms` from Delhi, IN
34.247.18.151	AS16509 Amazon.com, Inc.	`0.27ms` from Dublin, IE
147.154.172.167	AS31898 Oracle Corporation	`0.82ms` from Frankfurt am Main, DE
169.147.211.183	AS11659 University of Kansas Medical Center	`2.50ms` from Kansas City, US
102.64.223.71	AS36924 GVA Cote d'Ivoire SAS	`0.54ms` from Lomé, TG
166.88.9.167	AS62240 Clouvider	`0.76ms` from New York City, US
222.5.186.247	AS2516 KDDI CORPORATION	`14.40ms` from Osaka, JP
15.236.245.39	AS16509 Amazon.com, Inc.	`0.17ms` from Paris, FR
142.214.227.7	AS399827 2pifi, Inc	`9.85ms` from San Jose, US
43.213.187.167	AS16509 Amazon.com, Inc.	`0.19ms` from Taipei, TW
197.205.82.71	AS36947 Telecom Algeria	`18.94ms` from Algiers, DZ
94.110.118.23	AS47377 Orange Belgium SA	`8.85ms` from Amsterdam, NL
167.148.51.39	AS7029 Windstream Communications LLC	`0.42ms` from Ashburn, US
116.129.180.215	AS4837 CHINA UNICOM China169 Backbone	`1.52ms` from Kunming, CN
81.103.245.71	AS5089 Virgin Media Limited	`8.63ms` from London, GB
109.244.156.231	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.16ms` from Nanjing, CN
3.229.31.167	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
101.230.99.55	AS4812 China Telecom (Group)	`2.93ms` from Shanghai, CN
140.112.223.135	AS17716 National Taiwan University	`1.53ms` from Taipei, TW

Traceroute

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

traceroute -a -n -q1 -f4 -m8 157.71.84.82

traceroute to 157.71.84.82 (157.71.84.82): 8 hops max, 52 byte packets

4 [AS3491] 63.223.60.106 270.337 ms

5 [AS17676] 221.111.203.85 303.959 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Nairobi, KE

On January 19th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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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