49.128.24.0/21

AS23780 · CTB Media Inc.

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

Summary

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

WHOIS Details

inetnum:        49.128.24.0 - 49.128.31.255
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 49.128.0.0/16

Range	ASN	Company	Num of IPs
49.128.128.0/19	AS10001	Mics Network Corporation	8,192
49.128.224.0/19	AS16509		8,192
49.128.32.0/19	AS17547	M1 NET LTD	8,192
49.128.112.0/20	AS10135	eASPNet Taiwan Inc.	4,096
49.128.16.0/21	AS17698	COMMUNITY NETWORK CENTER INC.	2,048
49.128.176.0/21	AS55666	PT Media Sarana Data	2,048
49.128.100.0/22	AS23822	HAGI Television Co., Ltd.	1,024
49.128.188.0/22	AS137286	PT. Arupa Cloud Nusantara	1,024
49.128.96.0/22	AS23780	CTB Media Inc.	1,024
49.128.176.0/23	AS55666	PT Media Sarana Data	512
49.128.223.0/24	AS146834	KDATA	256
49.128.176.0/24	AS55666	PT Media Sarana Data	256
49.128.177.0/24	AS55666	PT Media Sarana Data	256
49.128.178.0/24	AS55666	PT Blip Integrator Provider	256
49.128.179.0/24	AS55666	PT Media Sarana Data	256
49.128.180.0/24	AS55666	PT Internet Mulia Untuk Negeri	256
49.128.181.0/24	AS55666	PT Media Sarana Data	256
49.128.182.0/24	AS55666	PT Media Sarana Data	256
49.128.183.0/24	AS55666	PT Media Sarana Data	256
49.128.10.0/24	AS55843	Acclivis Technology Solution	256
49.128.11.0/24	AS55843	Acclivis Technology Solution	256
49.128.8.0/24	AS55843	Acclivis Technology Solution	256
49.128.9.0/24	AS55843	Acclivis Technology Solution	256
49.128.160.0/24	AS55862	Wan & Lan Internet Pvt. Ltd.	256
49.128.161.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.162.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.163.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.164.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.165.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.166.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.167.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.168.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.169.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.170.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.171.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.172.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.173.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.174.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.175.0/24	AS55862	WAN & LAN INTERNET PVT LTD	256
49.128.202.0/24	AS9318	zhilan technology	256
49.128.204.0/24	AS9318	zhilan technology	256
49.128.213.0/24	AS9318	zhilan technology	256
49.128.184.0/24	AS131745	PT. Cybertechtonic Pratama	256
49.128.185.0/24	AS131745	PT. Cybertechtonic Pratama	256
49.128.186.0/24	AS131745	PT. Cybertechtonic Pratama	256
49.128.187.0/24	AS131745	PT. Cybertechtonic Pratama	256
49.128.1.0/24	AS133547	Md. Muttakin Islam T/A Bit Net Technology	256
49.128.205.0/24	AS136209	Viaweb	256
49.128.194.0/24	AS138195	moack	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
49.128.28.1	AS23780 CTB Media Inc.	`9.22ms` from Osaka, JP
49.128.26.21	AS23780 CTB Media Inc.	`9.61ms` from Osaka, JP
49.128.31.57	AS23780 CTB Media Inc.	`10.46ms` from Osaka, JP
49.128.24.1	AS23780 CTB Media Inc.	`9.11ms` from Osaka, JP
49.128.29.247	AS23780 CTB Media Inc.	`9.75ms` from Osaka, JP
49.128.30.224	AS23780 CTB Media Inc.	`10.43ms` from Osaka, JP
49.128.25.178	AS23780 CTB Media Inc.	`10.26ms` from Osaka, JP
49.128.27.59	AS23780 CTB Media Inc.	`9.50ms` 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
167.250.36.69	AS263717 SOL TELECOMUNICACIONES S.A.	`5.89ms` from Asuncion, PY
167.200.140.245	AS2897 Georgia Technology Authority	`6.39ms` from Atlanta, US
179.32.193.133	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`8.14ms` from Bogota, CO
217.52.18.5	AS36992 ETISALAT MISR	`10.00ms` from Cairo, EG
111.26.247.213	AS134810 China Mobile Group JiLin communications corporation	`3.40ms` from Changchun, CN
199.182.136.5	AS13807 Great Plains Communications LLC	`5.45ms` from Columbus, US
177.89.111.5	AS28220 Alares Cabo Servicos de Telecomunicacoes S.A.	`13.46ms` from Fortaleza, BR
170.39.22.101	AS398419 Tiny Tiny Computing	`0.23ms` from Fremont, US
186.3.193.165	AS27947 Telconet S.A	`2.48ms` from Guayaquil, EC
223.4.66.149	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.90ms` from Hangzhou, CN
218.56.137.181	AS4837 CHINA UNICOM China169 Backbone	`3.30ms` from Jinan, CN
20.250.117.85	AS8075 Microsoft Corporation	`0.18ms` from Kloten, CH
109.180.20.213	AS2856 British Telecommunications PLC	`3.66ms` from London, GB
185.40.124.213	AS47264 IOMART MANAGED SERVICES LIMITED	`0.19ms` from London, GB
81.78.125.53	AS5378 Vodafone Limited	`9.23ms` from London, GB
88.19.149.21	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.75ms` from Madrid, ES
185.22.84.101	AS12874 Fastweb SpA	`2.79ms` from Milan, IT
185.210.159.133	AS212394 ISS S.R.L.S.	`6.31ms` from Milan, IT
218.4.207.133	AS4134 CHINANET-BACKBONE	`4.01ms` from Nanjing, CN
119.229.202.197	AS17511 OPTAGE Inc.	`2.54ms` from Osaka, JP
187.210.25.5	AS8151 UNINET	`3.11ms` from Santiago de Queretaro, MX
1.253.2.21	AS9318 SK Broadband Co Ltd	`7.72ms` from Seoul, KR
111.165.249.197	AS4837 CHINA UNICOM China169 Backbone	`4.79ms` from Beijing, CN
197.53.208.149	AS8452 TE-AS	`6.54ms` from Cairo, EG
50.102.128.117	AS5650 Frontier Communications of America, Inc.	`4.39ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -f5 49.128.31.17

traceroute to 49.128.31.17 (49.128.31.17): 64 hops max, 52 byte packets

5 [] 210.173.184.13 2.924 ms

6 [AS23780] 211.15.112.25 9.267 ms

7 [AS23780] 211.15.112.250 11.744 ms

8 [AS23780] 49.128.31.17 14.967 ms

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On December 6th 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