211.15.112.0/20

AS23780 · CTB Media Inc.

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Summary

Country	Japan
Domain	ctb.ne.jp
ASN	AS23780
Registry	JPNIC
ID	CTB-CIDR-BLK-JP

WHOIS Details

inetnum:        211.15.112.0 - 211.15.127.255
netname:        CTB-CIDR-BLK-JP
descr:          CTB Media Inc.
remarks:        Email address for spam or abuse complaints:[email protected]
country:        JP
admin-c:        HH35530JP
tech-c:         HH35530JP
last-modified:  2025-12-04T01:44:04Z
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 211.15.0.0/16

Range	ASN	Company	Num of IPs
211.15.128.0/17	AS2516	KDDI CORPORATION	32,768

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
211.15.116.51	beppu-ja.org	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

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

IP Address	ASN	Details
211.15.116.45	AS23780 CTB Media Inc.	`8.88ms` from Osaka, JP
211.15.115.193	AS23780 CTB Media Inc.	`9.11ms` from Osaka, JP
211.15.119.249	AS23780 CTB Media Inc.	`9.87ms` from Osaka, JP
211.15.120.1	AS23780 CTB Media Inc.	`9.21ms` from Osaka, JP
211.15.117.38	AS23780 CTB Media Inc.	`9.25ms` from Osaka, JP
211.15.126.208	AS23780 CTB Media Inc.	`9.72ms` from Osaka, JP
211.15.122.128	AS23780 CTB Media Inc.	`10.00ms` from Osaka, JP
211.15.118.3	AS23780 CTB Media Inc.	`8.85ms` from Osaka, JP
211.15.124.1	AS23780 CTB Media Inc.	`9.30ms` from Osaka, JP
211.15.112.26	AS23780 CTB Media Inc.	`0.19ms` from Osaka, JP
211.15.125.52	AS23780 CTB Media Inc.	`9.40ms` from Osaka, JP
211.15.127.217	AS23780 CTB Media Inc.	`9.71ms` from Osaka, JP
211.15.123.71	AS23780 CTB Media Inc.	`9.38ms` from Osaka, JP
211.15.121.211	AS23780 CTB Media Inc.	`9.85ms` from Osaka, 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
188.122.87.36	AS49544 i3D.net B.V	`1.35ms` from Amsterdam, NL
190.138.75.100	AS7303 Telecom Argentina S.A.	`2.03ms` from Buenos Aires, AR
27.14.163.244	AS4837 CHINA UNICOM China169 Backbone	`3.21ms` from Chongqing, CN
169.54.218.52	AS36351 IBM Cloud	`0.98ms` from Dallas, US
86.40.87.20	AS5466 Eircom Limited	`2.98ms` from Dublin, IE
139.19.219.36	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`5.93ms` from Frankfurt am Main, DE
123.25.227.228	AS45899 VNPT Corp	`5.24ms` from Hanoi, VN
39.55.150.4	AS17557 Pakistan Telecommunication Company Limited	`6.06ms` from Lahore, PK
187.208.247.196	AS8151 UNINET	`1.85ms` from Mexico City, MX
222.230.113.148	AS2519 ARTERIA Networks Corporation	`8.53ms` from Osaka, JP
201.95.109.68	AS27699 TELEFÔNICA BRASIL S.A	`4.34ms` from Osasco, BR
64.14.19.116	AS19701 Yodlee Inc.	`0.72ms` from San Jose, US
174.7.234.68	AS6327 Shaw Communications	`7.38ms` from Seattle, US
70.67.71.100	AS6327 Shaw Communications	`6.28ms` from Seattle, US
67.185.65.36	AS7922 Comcast Cable Communications, LLC	`9.44ms` from Seattle, US
220.83.67.148	AS4766 Korea Telecom	`4.28ms` from Seoul, KR
8.132.100.228	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.25ms` from Shanghai, CN
46.74.166.212	AS8447 A1 Telekom Austria AG	`16.28ms` from Vienna, AT
20.120.100.68	AS8075 Microsoft Corporation	`0.38ms` from Ashburn, US
23.210.22.148	AS16625 Akamai Technologies, Inc.	`0.23ms` from Atlanta, US
15.235.98.20	AS16276 OVH SAS	`0.06ms` from Beauharnois, CA
141.14.231.212	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`8.76ms` from Berlin, DE
85.120.64.244	AS34416 Full Duplex SRL	`0.41ms` from Bucharest, RO
196.70.243.244	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`6.72ms` from Casablanca, MA
14.233.13.68	AS45899 VNPT Corp	`5.33ms` from Da Nang, VN

Traceroute

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

traceroute -a -n -q1 -f5 211.15.117.129

traceroute to 211.15.117.129 (211.15.117.129): 64 hops max, 52 byte packets

5 [] 210.173.184.13 1.264 ms

6 [AS23780] 211.15.112.25 9.385 ms

7 [AS23780] 211.15.117.129 10.112 ms

Measurement taken from

IPinfo ProbeNet in Osaka, 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.

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