218.251.128.0/17

AS23720 · Rakuten Mobile Network, Inc.

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Summary

Country	Japan
Domain	rakuten.com
ASN	AS23720
Registry	APNIC
ID	RMNI-JP

WHOIS Details

inetnum:        218.251.128.0 - 218.251.255.255
netname:        RMNI-JP
descr:          Rakuten Mobile Network, Inc.
country:        JP
org:            ORG-RMNI1-AP
admin-c:        RMNI1-AP
tech-c:         RMNI1-AP
abuse-c:        AR792-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-RMNI-JP
mnt-routes:     MAINT-RMNI-JP
mnt-irt:        IRT-RMNI-JP
last-modified:  2020-10-20T13:44:47Z
source:         APNIC

irt:            IRT-RMNI-JP
address:        1-14-1 Tamagawa, Setagaya-ku, Tokyo
e-mail:         rmi-as138384@mail.rakuten.com
abuse-mailbox:  rmi-abuse@mail.rakuten.com
admin-c:        RMNI1-AP
tech-c:         RMNI1-AP
auth:           # Filtered
remarks:        rmi-as138384@mail.rakuten.com was validated on 2025-06-23
remarks:        rmi-abuse@mail.rakuten.com was validated on 2025-07-09
mnt-by:         MAINT-RMNI-JP
last-modified:  2025-07-09T00:50:42Z
source:         APNIC

organisation:   ORG-RMNI1-AP
org-name:       Rakuten Mobile, Inc.
org-type:       LIR
country:        JP
address:        1-14-1 Tamagawa, Setagaya-ku
phone:          +81-050-5817-1360
e-mail:         rmi-as138384@mail.rakuten.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:17:40Z
source:         APNIC

role:           ABUSE RMNIJP
country:        ZZ
address:        1-14-1 Tamagawa, Setagaya-ku, Tokyo
phone:          +000000000
e-mail:         rmi-as138384@mail.rakuten.com
admin-c:        RMNI1-AP
tech-c:         RMNI1-AP
nic-hdl:        AR792-AP
remarks:        Generated from irt object IRT-RMNI-JP
remarks:        rmi-as138384@mail.rakuten.com was validated on 2025-06-23
remarks:        rmi-abuse@mail.rakuten.com was validated on 2025-07-09
abuse-mailbox:  rmi-abuse@mail.rakuten.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-09T00:51:09Z
source:         APNIC

role:           Rakuten Mobile Network Inc administrator
address:        1-14-1 Tamagawa, Setagaya-ku, Tokyo
country:        JP
phone:          +81-050-5817-1360
fax-no:         +81-050-5817-1360
e-mail:         rmi-as138384@mail.rakuten.com
admin-c:        RMNI1-AP
tech-c:         RMNI1-AP
nic-hdl:        RMNI1-AP
mnt-by:         MAINT-RMNI-JP
last-modified:  2021-02-14T23:12:21Z
source:         APNIC

route:          218.251.128.0/17
origin:         AS23720
descr:          Rakuten Communications K.K. Rakuten Crimson House 8F 1-14-1 Tamagawa Setagaya-ku
mnt-by:         MAINT-RMNI-JP
last-modified:  2020-03-18T03:15:06Z
source:         APNIC

Hosted domains

There are 21 domain names hosted across 21 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
218.251.246.12	saiko2018-summer.jp	1
218.251.240.191	n-quickcall.net	1
218.251.250.2	ew-transmission.info	1
218.251.226.149	tri-well.net	1
218.251.254.51	smart-in.jp	1
218.251.253.163	24jazzjapan.com	1
218.251.246.124	decoo.jp	1
218.251.249.8	neo-quickcall.net	1
218.251.231.110	ia-inter.net	1
218.251.234.80	u-ser.net	1
218.251.253.195	smart-in.org	1
218.251.252.128	mimeidia.net	1
218.251.246.158	saiko2018-spring.jp	1
218.251.248.168	tel-marketing-system.jp	1
218.251.231.187	xn--ocn-ws1e.com	1
218.251.250.26	cloudlivebox.net	1
218.251.231.145	workwelcommunicator.com	1
218.251.240.193	comtel.work	1
218.251.234.96	xn--so-net-ng2j.com	1
218.251.249.91	hagurashop.com	1

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

36 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
218.251.248.23	AS23720 Rakuten Mobile Network, Inc.	`4.44ms` from Tokyo, JP
218.251.244.26	AS23720 Rakuten Mobile Network, Inc.	`4.17ms` from Tokyo, JP
218.251.220.25	AS50605 Radius Communications Ltd	`0.58ms` from Osaka, JP
218.251.255.254	AS23720 Rakuten Mobile Network, Inc.	`4.40ms` from Tokyo, JP

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
83.87.58.1	AS33915 Vodafone Libertel B.V.	`1.89ms` from Amsterdam, NL
77.69.30.113	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`0.97ms` from Athens, GR
94.69.215.81	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`14.74ms` from Athens, GR
72.195.181.1	AS22773 Cox Communications Inc.	`3.06ms` from Atlanta, US
111.204.58.241	AS4808 China Unicom Beijing Province Network	`17.74ms` from Beijing, CN
60.6.75.33	AS4837 CHINA UNICOM China169 Backbone	`10.63ms` from Beijing, CN
77.183.182.97	AS6805 Telefonica Germany GmbH & Co.OHG	`3.36ms` from Berlin, DE
191.109.170.209	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`3.00ms` from Bogota, CO
178.117.208.1	AS6848 Telenet BV	`4.05ms` from Brussels, BE
31.5.172.1	AS12302 Vodafone Romania S.A.	`2.80ms` from Bucharest, RO
190.17.1.1	AS7303 Telecom Argentina S.A.	`2.08ms` from Buenos Aires, AR
24.232.187.1	AS7303 Telecom Argentina S.A.	`1.67ms` from Buenos Aires, AR
217.55.176.1	AS36992 ETISALAT MISR	`4.71ms` from Cairo, EG
13.245.98.193	AS16509 Amazon.com, Inc.	`0.10ms` from Cape Town, ZA
66.227.205.1	AS20115 Charter Communications LLC	`10.82ms` from Chicago, US
94.147.52.1	AS9158 Telenor A/S	`4.58ms` from Copenhagen, DK
181.28.134.1	AS7303 Telecom Argentina S.A.	`2.46ms` from Cordoba, AR
177.6.253.193	AS8167 V tal	`14.72ms` from Curitiba, BR
113.165.142.209	AS45899 VNPT Corp	`2.36ms` from Da Nang, VN
68.113.192.1	AS20115 Charter Communications LLC	`4.21ms` from Dallas, US
115.245.192.97	AS55836 Reliance Jio Infocomm Limited	`2.42ms` from Delhi, IN
103.178.221.177	AS138004 MIR INFO SYSTEMS LTD.	`0.21ms` from Dhaka, BD
135.196.24.49	AS9009 M247 Europe SRL	`10.14ms` from Dubai, AE
201.59.32.177	AS7738 V tal	`16.00ms` from Fortaleza, BR
46.3.144.1	AS213541 WS Telecom Inc	`0.23ms` 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 -m13 218.251.252.238

traceroute to 218.251.252.238 (218.251.252.238): 13 hops max, 52 byte packets

1 [AS31898] 140.91.218.6 0.113 ms

2 [] 218.100.9.120 0.869 ms

3 [] 218.100.9.66 1.255 ms

4 [AS138384] 193.114.55.6 7.313 ms

5 [AS138384] 103.124.3.13 9.085 ms

6 *

7 *

8 [AS23720] 203.216.2.160 12.21 ms

9 *

10 [AS23720] 203.216.2.160 11.95 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On August 29th 2025

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.

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