157.7.0.0/19

AS2907 · Research Organization of Information and Systems, National Institute of Informatics

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Summary

Country	Japan
Domain	rerf.or.jp
ASN	AS2907
Registry	APNIC
ID	RERFNET

WHOIS Details

inetnum:        157.7.0.0 - 157.7.31.255
netname:        RERFNET
country:        JP
descr:          Radiation Effects Research Foundation
admin-c:        SO361-AP
tech-c:         SO361-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
mnt-lower:      MAINT-JPNIC
last-modified:  2020-10-09T09:00:03Z
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Urbannet-Kanda Bldg 4F, 3-6-2 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        hostmaster@nic.ad.jp was validated on 2020-07-23
mnt-by:         MAINT-JPNIC
last-modified:  2020-07-23T04:24:41Z
source:         APNIC

person:         Satoru Ono
nic-hdl:        SO361-AP
e-mail:         ono@rerf.or.jp
address:        5-2 Hijiyama Park, MInami-ku, Hiroshima City, Japan
phone:          +81-82-261-1953
country:        JP
mnt-by:         MAINT-JPNIC
last-modified:  2020-10-09T08:58:03Z
source:         APNIC

inetnum:        157.7.0.0 - 157.7.31.255
netname:        RERFNET-CIDR-BLK-JP
descr:          Radiation Effects Research Foundation
country:        JP
admin-c:        SO34880JP
tech-c:         SO34880JP
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
last-modified:  2020-10-08T20:29:03Z
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 157.7.0.0/16

Range	ASN	Company	Num of IPs
157.7.128.0/17	AS7506	GMO Internet Group, Inc.	32,768
157.7.64.0/18	AS7506	GMO Internet Group, Inc.	16,384
157.7.48.0/20	AS7506	GMO Internet Group, Inc.	4,096
157.7.40.0/21	AS7506	GMO Internet Group, Inc.	2,048
157.7.36.0/22	AS7506	GMO Internet, Inc.	1,024
157.7.33.0/24	AS55907	GMO Internet, Inc.	256
157.7.32.0/24	AS55907	GMO Internet, Inc.	256
157.7.34.0/24	AS55907	GMO Internet, Inc.	256
157.7.35.0/24	AS55907	GMO Internet, Inc.	256

Hosted domains

There are 3 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
157.7.1.4	xn--netq3fw1cq7d6q6auidsth4v2d.jp	2
157.7.7.214	matsumoto-zouen.jp	1

Hosted domains API

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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
114.248.180.51	AS4808 China Unicom Beijing Province Network	4.08ms from Beijing, CN
186.29.230.83	AS19429 ETB - Colombia	1.05ms from Bogota, CO
73.159.96.115	AS7922 Comcast Cable Communications, LLC	7.17ms from Boston, US
190.9.3.51	AS22501 Cooperativa Telefonica Carlos Tejedor Ltda.	9.24ms from Buenos Aires, AR
131.186.104.67	AS54253 Oracle Corporation	1.26ms from Duesseldorf, DE
187.204.206.211	AS8151 UNINET	1.02ms from Guadalajara, MX
88.112.65.3	AS719 Elisa Oyj	1.09ms from Helsinki, FI
98.130.57.243	AS16509 Amazon.com, Inc.	1.88ms from Hyderabad, IN
174.72.185.147	AS22773 Cox Communications Inc.	9.41ms from Los Angeles, US
121.81.78.163	AS17511 OPTAGE Inc.	1.88ms from Osaka, JP
79.160.61.243	AS29695 Altibox AS	3.07ms from Oslo, NO
31.33.216.3	AS5410 Bouygues Telecom SA	1.11ms from Paris, FR
5.165.242.211	AS57378 JSC "ER-Telecom Holding"	17.20ms from Samara, RU
189.108.78.3	AS10429 TELEFÔNICA BRASIL S.A	2.00ms from Sao Paulo, BR
203.216.160.99	AS17878 DREAMMARK1	1.18ms from Seoul, KR
203.25.111.19	AS7722 TELPACIFIC P/L	0.99ms from Sydney, AU
76.69.83.35	AS577 Bell Canada	4.37ms from Toronto, CA
80.200.106.67	AS5432 Proximus NV	4.99ms from Amsterdam, NL
202.115.68.3	AS4538 China Education and Research Network Center	3.43ms from Chengdu, CN
112.124.27.115	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	4.97ms from Hangzhou, CN
82.45.42.99	AS5089 Virgin Media Limited	11.67ms from London, GB
151.226.198.243	AS5607 Sky UK Limited	5.84ms from London, GB
79.13.233.3	AS3269 Telecom Italia S.p.A.	8.99ms from Milan, IT
183.77.97.51	AS4685 Asahi Net	4.24ms from Osaka, JP
153.125.22.3	AS9615 TOYOHASHI CABLE NETWORK INC.	5.53ms from Osaka, JP

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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