121.103.0.0/16

AS2527 · Sony Network Communications Inc.

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Japan
Domain	sonynetwork.co.jp
ASN	AS2527
Registry	APNIC
ID	SO-NET

WHOIS Details

inetnum:        121.103.0.0 - 121.103.255.255
netname:        So-net
descr:          Sony Network Communications Inc.
descr:          4-12-3, Higashishinagawa, Shinagawa-ku, Tokyo, 140-0002, Japan
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
remarks:        Email address for spam or abuse complaints : abuse@so-net.ne.jp
country:        JP
mnt-by:         MAINT-JPNIC
mnt-lower:      MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
status:         ALLOCATED PORTABLE
last-modified:  2016-07-15T07:17:43Z
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 2020-07-23
mnt-by:         MAINT-JPNIC
last-modified:  2022-06-14T04:26:58Z
source:         APNIC

role:           Japan Network Information Center
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2022-01-05T03:04:02Z
source:         APNIC

inetnum:        121.103.0.0 - 121.103.255.255
netname:        So-net-CIDR-BLK-JP
descr:          Sony Network Communications Inc.
remarks:        Email address for spam or abuse complaints : abuse@so-net.ne.jp
country:        JP
admin-c:        JP00001330
tech-c:         JP00001330
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:  2017-08-24T03:05:46Z
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 121.0.0.0/8

Range	ASN	Company	Num of IPs
121.128.0.0/11	AS38122	Korea Telecom	2,097,152
121.128.0.0/11	AS17588	Korea Telecom	2,097,152
121.128.0.0/11	AS18333	Korea Telecom	2,097,152
121.160.0.0/11	AS4766	Korea Telecom	2,097,152
121.128.0.0/11	AS4766	Korea Telecom	2,097,152
121.160.0.0/11	AS23582	Korea Telecom	2,097,152
121.128.0.0/11	AS9647	Korea Telecom	2,097,152
121.128.0.0/11	AS9856	Korea Telecom	2,097,152
121.160.0.0/11	AS38089	Korea Telecom	2,097,152
121.224.0.0/12	AS137699	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS140292	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS134770	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS4134	CHINANET jiangsu province network	1,048,576
121.208.0.0/12	AS1221	Telstra Limited	1,048,576
121.224.0.0/12	AS137702	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS134756	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS146966	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS137697	CHINANET jiangsu province network	1,048,576
121.8.0.0/13	AS136199	CHINANET Guangdong province network	524,288
121.8.0.0/13	AS140308	CHINANET Guangdong province network	524,288
121.8.0.0/13	AS135089	CHINANET Guangdong province network	524,288
121.8.0.0/13	AS4134	CHINANET Guangdong province network	524,288
121.112.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	524,288
121.16.0.0/13	AS4837	China Unicom Hebei province network	524,288
121.64.0.0/14	AS3786	LG DACOM Corporation	262,144
121.248.0.0/14	AS4538	China Education and Research Network	262,144
121.24.0.0/14	AS4837	China Unicom Hebei province network	262,144
121.64.0.0/14	AS17598	LG DACOM Corporation	262,144
121.204.0.0/14	AS133776	CHINANET Fujian province network	262,144
121.64.0.0/14	AS17586	LG DACOM Corporation	262,144
121.60.0.0/14	AS4134	CHINANET Hubei province network	262,144
121.64.0.0/14	AS23555	LG DACOM Corporation	262,144
121.196.0.0/14	AS37963	Aliyun Computing Co., LTD	262,144
121.40.0.0/14	AS37963	Aliyun Computing Co., LTD	262,144
121.204.0.0/14	AS133775	CHINANET Fujian province network	262,144
121.80.0.0/14	AS17511	OPTAGE Inc.	262,144
121.204.0.0/14	AS4134	CHINANET Fujian province network	262,144
121.84.0.0/14	AS17511	OPTAGE Inc.	262,144
121.60.0.0/14	AS148981	CHINANET Hubei province network	262,144
121.32.0.0/14	AS4134	CHINANET Guangdong province network	262,144
121.204.0.0/14	AS133774	CHINANET Fujian province network	262,144
121.44.0.0/15	AS7545	iiNet Limited	131,072
121.98.0.0/15	AS9790	Two Degrees Mobile Limited	131,072
121.4.0.0/15	AS132203	Tencent cloud computing (Beijing) Co., Ltd.	131,072
121.56.0.0/15	AS4134	CHINANET neimeng province network	131,072
121.44.0.0/15	AS4739	iiNet Limited	131,072
121.28.0.0/15	AS4837	China Unicom Hebei province network	131,072
121.76.0.0/15	AS9812	Oriental Cable Network Co., Ltd.	131,072
121.96.0.0/15	AS6648	Bayan Telecommunications Incorporated	131,072
121.124.0.0/15	AS9318	SK Broadband Co Ltd	131,072

Hosted domains

There are 23 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
121.103.64.179	fan-techdev.com	2
121.103.169.224	yggy.jp	2
121.103.206.192	hama.ws	1
121.103.36.2	kotora.wiki	1
121.103.231.87	etupirka.net	1
121.103.212.242	cyber-rose.com	1
121.103.8.212	mojoringer.net	1
121.103.31.141	widesnow.info	1
121.103.232.122	maho-tsukai.com	1
121.103.123.242	zen96k.jp	1
121.103.115.217	polythene-pam.com	1
121.103.201.205	love4taylor.com	1
121.103.254.217	aptgate.jp	1
121.103.8.172	kensukey.com	1
121.103.230.226	nisozi-dev.com	1
121.103.228.40	mitsudon.jp	1
121.103.52.195	testermelon.com	1
121.103.224.171	polygonworks.net	1
121.103.215.202	syachiku.info	1
121.103.58.116	1710.in	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

14,212 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
121.103.35.12	AS2527 Sony Network Communications Inc.	`17.00ms` from Tokyo, JP
121.103.2.193	AS2527 Sony Network Communications Inc.	`1.77ms` from Tokyo, JP
121.103.90.77	AS2527 Sony Network Communications Inc.	`9.66ms` from Tokyo, JP
121.103.134.198	AS2527 Sony Network Communications Inc.	`19.72ms` from Tokyo, JP
121.103.115.187	AS2527 Sony Network Communications Inc.	`1.96ms` from Tokyo, JP
121.103.170.53	AS2527 Sony Network Communications Inc.	`1.66ms` from Tokyo, JP
121.103.155.120	AS2527 Sony Network Communications Inc.	`2.26ms` from Tokyo, JP
121.103.150.223	AS2527 Sony Network Communications Inc.	`2.18ms` from Tokyo, JP
121.103.85.53	AS2527 Sony Network Communications Inc.	`17.04ms` from Tokyo, JP
121.103.109.29	AS2527 Sony Network Communications Inc.	`2.80ms` from Tokyo, JP
121.103.157.248	AS2527 Sony Network Communications Inc.	`18.46ms` from Tokyo, JP
121.103.120.76	AS2527 Sony Network Communications Inc.	`2.86ms` from Tokyo, JP
121.103.89.44	AS2527 Sony Network Communications Inc.	`1.76ms` from Tokyo, JP
121.103.57.14	AS2527 Sony Network Communications Inc.	`1.68ms` from Tokyo, JP
121.103.110.86	AS2527 Sony Network Communications Inc.	`3.69ms` from Tokyo, JP
121.103.98.23	AS2527 Sony Network Communications Inc.	`3.59ms` from Tokyo, JP
121.103.117.38	AS2527 Sony Network Communications Inc.	`1.93ms` from Tokyo, JP
121.103.127.146	AS2527 Sony Network Communications Inc.	`1.95ms` from Tokyo, JP
121.103.34.51	AS2527 Sony Network Communications Inc.	`16.37ms` from Tokyo, JP
121.103.11.49	AS2527 Sony Network Communications Inc.	`17.09ms` from Tokyo, JP
121.103.94.36	AS2527 Sony Network Communications Inc.	`9.68ms` from Tokyo, JP
121.103.64.163	AS2527 Sony Network Communications Inc.	`2.18ms` from Tokyo, JP
121.103.151.124	AS2527 Sony Network Communications Inc.	`9.36ms` from Tokyo, JP
121.103.78.183	AS2527 Sony Network Communications Inc.	`2.04ms` from Tokyo, JP
121.103.79.157	AS2527 Sony Network Communications Inc.	`1.79ms` 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
34.11.66.224	AS396982 Google LLC	`0.15ms` from Ashburn, US
103.185.23.64	AS139074 Prodigi Technology Services Limited - Community ISP	`0.35ms` from Auckland, NZ
57.144.136.48	AS32934 Facebook, Inc.	`0.30ms` from Brasilia, BR
69.48.38.0	AS7029 Windstream Communications LLC	`10.37ms` from Chicago, US
76.186.98.160	AS11427 Charter Communications Inc	`7.88ms` from Dallas, US
23.35.170.112	AS16625 Akamai Technologies, Inc.	`0.55ms` from Dallas, US
27.151.88.64	AS4134 CHINANET-BACKBONE	`4.75ms` from Fuzhou, CN
115.79.141.80	AS7552 Viettel Group	`0.86ms` from Ho Chi Minh City, VN
154.19.222.80	AS18186 Nebula Global LLC	`1.15ms` from Hong Kong, HK
84.78.216.112	AS12479 Orange Espagne SA	`1.67ms` from Madrid, ES
73.139.105.208	AS7922 Comcast Cable Communications, LLC	`5.00ms` from Miami, US
66.81.151.32	AS207054 FLYNET SRL	`5.70ms` from Milan, IT
58.59.188.80	AS4134 CHINANET-BACKBONE	`8.54ms` from Nanning, CN
86.252.147.80	AS3215 Orange S.A.	`2.09ms` from Paris, FR
85.70.48.192	AS5610 O2 Czech Republic, a.s.	`1.15ms` from Prague, CZ
44.215.61.0	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
70.129.16.0	AS7018 AT&T Enterprises, LLC	`2.74ms` from San Antonio, US
124.41.84.96	AS2497 Internet Initiative Japan Inc.	`3.96ms` from Tokyo, JP
139.87.34.0	AS6142 Oracle Corporation	`0.46ms` from Ashburn, US
54.244.128.144	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
89.136.71.64	AS12302 Vodafone Romania S.A.	`12.90ms` from Bucharest, RO
41.47.184.208	AS8452 TE-AS	`7.23ms` from Cairo, EG
200.175.44.96	AS18881 TELEFÔNICA BRASIL S.A	`3.46ms` from Curitiba, BR
177.96.18.64	AS18881 TELEFÔNICA BRASIL S.A	`6.92ms` from Curitiba, BR
77.189.44.160	AS6805 Telefonica Germany GmbH & Co.OHG	`4.17ms` 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 -f6 121.103.1.141

traceroute to 121.103.1.141 (121.103.1.141): 64 hops max, 52 byte packets

6 [AS2527] 219.98.228.222 2.506 ms

7 [AS2527] 92.203.142.205 28.271 ms

8 [AS2527] 121.103.1.141 3.913 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On December 14th 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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales