121.106.0.0/16

AS2516 · KDDI CORPORATION

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Summary

Country	Japan
Domain	kddi.com
ASN	AS2516
Registry	JPNIC
ID	KDDI-CIDR-BLK-JP

WHOIS Details

inetnum:        121.104.0.0 - 121.107.255.255
netname:        KDDI-CIDR-BLK-JP
descr:          KDDI CORPORATION
remarks:        Email address for spam or abuse complaints : [email protected]
country:        JP
admin-c:        JP00000127
tech-c:         JP00000181
last-modified:  2009-06-24T23:17:47Z
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)
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 121.0.0.0/8

Range	ASN	Company	Num of IPs
121.160.0.0/11	AS4766	Korea Telecom	2,097,152
121.160.0.0/11	AS23582	Korea Telecom	2,097,152
121.128.0.0/11	AS38122	Korea Telecom	2,097,152
121.128.0.0/11	AS4766	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
121.128.0.0/11	AS9856	Korea Telecom	2,097,152
121.128.0.0/11	AS9647	Korea Telecom	2,097,152
121.160.0.0/11	AS38089	Korea Telecom	2,097,152
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	AS137699	CHINANET jiangsu province network	1,048,576
121.224.0.0/12	AS137702	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	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	AS4134	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	AS136199	CHINANET Guangdong province network	524,288
121.16.0.0/13	AS4837	China Unicom Hebei province network	524,288
121.112.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	524,288
121.24.0.0/14	AS4837	China Unicom Hebei province network	262,144
121.40.0.0/14	AS37963	Aliyun Computing Co., LTD	262,144
121.64.0.0/14	AS23555	LG DACOM Corporation	262,144
121.204.0.0/14	AS133774	CHINANET Fujian province network	262,144
121.64.0.0/14	AS3786	LG DACOM Corporation	262,144
121.64.0.0/14	AS17586	LG DACOM Corporation	262,144
121.196.0.0/14	AS37963	Aliyun Computing Co., LTD	262,144
121.248.0.0/14	AS4538	China Education and Research Network	262,144
121.204.0.0/14	AS4134	CHINANET Fujian province network	262,144
121.80.0.0/14	AS17511	OPTAGE Inc.	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
121.204.0.0/14	AS133775	CHINANET Fujian province network	262,144
121.60.0.0/14	AS4134	CHINANET Hubei 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
121.56.0.0/15	AS4134	CHINANET neimeng province network	131,072
121.194.0.0/15	AS4538	China Education and Research Network	131,072
121.4.0.0/15	AS132203	Tencent cloud computing (Beijing) Co., Ltd.	131,072
121.124.0.0/15	AS9318	SK Broadband Co Ltd	131,072
121.48.0.0/15	AS4538	China Education and Research Network	131,072
121.98.0.0/15	AS9790	Two Degrees Mobile Limited	131,072
121.44.0.0/15	AS7545	iiNet Limited	131,072
121.76.0.0/15	AS9812	Oriental Cable Network Co., Ltd.	131,072
121.202.0.0/15	AS17924	SmarTone Mobile Communications Ltd	131,072

Hosted domains

There are 9 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
121.106.135.214	tac-t.net	2
121.106.98.111	trf.jp	1
121.106.91.185	clambake.jp	1
121.106.185.147	onpu.info	1
121.106.109.80	19830525.com	1
121.106.82.238	okinawa47.click	1
121.106.88.166	ngvs.net	1
121.106.146.129	qbsmrn.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

1,102 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
121.106.218.1	AS2516 KDDI CORPORATION	`6.96ms` from Osaka, JP
121.106.232.1	AS2516 KDDI CORPORATION	`9.75ms` from Osaka, JP
121.106.146.1	AS2516 KDDI CORPORATION	`18.60ms` from Tokyo, JP
121.106.136.1	AS2516 KDDI CORPORATION	`4.27ms` from Tokyo, JP
121.106.154.193	AS2516 KDDI CORPORATION	`2.25ms` from Tokyo, JP
121.106.85.185	AS2516 KDDI CORPORATION	`24.09ms` from Osaka, JP
121.106.236.187	AS2516 KDDI CORPORATION	`14.99ms` from Osaka, JP
121.106.201.1	AS2516 KDDI CORPORATION	`12.91ms` from Osaka, JP
121.106.200.20	AS2516 KDDI CORPORATION	`18.83ms` from Tokyo, JP
121.106.234.1	AS2516 KDDI CORPORATION	`16.56ms` from Osaka, JP
121.106.184.1	AS2516 KDDI CORPORATION	`8.67ms` from Tokyo, JP
121.106.162.1	AS2516 KDDI CORPORATION	`3.71ms` from Tokyo, JP
121.106.229.129	AS2516 KDDI CORPORATION	`10.51ms` from Osaka, JP
121.106.170.1	AS2516 KDDI CORPORATION	`17.41ms` from Tokyo, JP
121.106.194.1	AS2516 KDDI CORPORATION	`10.32ms` from Tokyo, JP
121.106.227.1	AS2516 KDDI CORPORATION	`12.77ms` from Osaka, JP
121.106.208.1	AS2516 KDDI CORPORATION	`6.44ms` from Osaka, JP
121.106.250.1	AS2516 KDDI CORPORATION	`5.99ms` from Tokyo, JP
121.106.134.193	AS2516 KDDI CORPORATION	`4.49ms` from Tokyo, JP
121.106.237.1	AS2516 KDDI CORPORATION	`15.75ms` from Osaka, JP
121.106.171.1	AS2516 KDDI CORPORATION	`0.87ms` from Tokyo, JP
121.106.142.1	AS2516 KDDI CORPORATION	`4.70ms` from Tokyo, JP
121.106.196.1	AS2516 KDDI CORPORATION	`9.60ms` from Tokyo, JP
121.106.93.193	AS2516 KDDI CORPORATION	`4.69ms` from Tokyo, JP
121.106.253.186	AS2516 KDDI CORPORATION	`3.81ms` 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
76.190.155.32	AS10796 Charter Communications Inc	`13.92ms` from Ashburn, US
168.61.39.0	AS8075 Microsoft Corporation	`0.45ms` from Ashburn, US
172.214.94.48	AS8075 Microsoft Corporation	`0.92ms` from Ashburn, US
75.248.100.240	AS6167 Verizon Business	`17.27ms` from Atlanta, US
3.128.194.48	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
102.210.200.176	AS37349 Aptus Solutions Ltd	`0.62ms` from Dar es Salaam, TZ
52.50.70.16	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
52.58.53.80	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
150.40.219.64	AS136907 HUAWEI CLOUDS	`1.16ms` from Hong Kong, HK
88.16.103.16	AS3352 TELEFONICA DE ESPANA S.A.U.	`11.18ms` from Madrid, ES
197.232.172.32	AS36866 Jamii Telecommunications Limited	`1.83ms` from Nairobi, KE
59.9.173.112	AS4766 Korea Telecom	`1.57ms` from Seoul, KR
57.182.121.128	AS16509 Amazon.com, Inc.	`0.29ms` from Tokyo, JP
211.15.56.16	AS17676 SoftBank Corp.	`2.76ms` from Tokyo, JP
126.116.228.208	AS17676 SoftBank Corp.	`3.65ms` from Tokyo, JP
178.191.149.0	AS8447 A1 Telekom Austria AG	`12.79ms` from Vienna, AT
176.115.12.240	AS58350 PHU Classcom Sp. z o.o.	`5.40ms` from Warsaw, PL
77.49.51.16	AS1241 Forthnet	`1.99ms` from Athens, GR
3.128.233.64	AS16509 Amazon.com, Inc.	`0.19ms` from Columbus, US
72.108.127.16	AS6167 Verizon Business	`11.32ms` from Dallas, US
103.54.108.128	AS152723 Maijdee Supernet	`4.27ms` from Dhaka, BD
54.75.98.16	AS16509 Amazon.com, Inc.	`0.20ms` from Dublin, IE
84.245.146.128	AS20676 Plusnet GmbH	`0.67ms` from Frankfurt am Main, DE
197.94.70.112	AS20011 Dimension Data	`0.78ms` from Johannesburg, ZA
90.58.154.16	AS3215 Orange S.A.	`13.20ms` from Paris, FR

Traceroute

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

traceroute -a -n -q1 -m6 121.106.121.186

traceroute to 121.106.121.186 (121.106.121.186): 6 hops max, 52 byte packets

1 [AS15169] 142.251.52.39 70.141 ms

2 *

3 [AS2516] 111.87.3.109 73.282 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Moncks Corner, US

On December 6th 2025

What are IP address ranges?

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