AS number details

AS17421

Mobile Business Group · twnic.tw

Taiwan

bittorrent

mobile

stub_as

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AS17421 – Mobile Business Group

Field	Value
Country	Taiwan
Website	twnic.tw
Hosted domains	31
Number of IPv4	1,634,048
Number of IPv6	40,570,331,909,040,783,556,931,162,734,592
ASN type	Business
Registry	apnic
Updated	4 years ago on Nov 04, 2021

Netblock	Company	Num of IPs
111.80.0.0/16	Chunghwa Telecom Co.,Ltd.	65,536
42.74.0.0/16	Mobile Business Group	65,536
42.75.0.0/16	Mobile Business Group	65,536
111.82.0.0/17	Chunghwa Telecom Co.,Ltd.	32,768
111.82.128.0/17	Chunghwa Telecom Co.,Ltd.	32,768
223.143.0.0/17	Chunghwa Telecom Co.,Ltd.	32,768
42.73.0.0/17	Mobile Business Group	32,768
42.73.128.0/17	Mobile Business Group	32,768
42.79.0.0/17	Mobile Business Group	32,768
111.70.0.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.71.0.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.71.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.71.64.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.81.0.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.81.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.81.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.81.64.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.83.0.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.83.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.83.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
111.83.64.0/18	Chunghwa Telecom Co.,Ltd.	16,384
114.136.0.0/18	Chunghwa Telecom Co.,Ltd.	16,384
114.136.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
114.136.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
114.136.64.0/18	Chunghwa Telecom Co.,Ltd.	16,384
114.137.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
114.137.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
116.59.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
116.59.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
116.59.64.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.136.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.136.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.137.0.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.137.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.137.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.137.64.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.138.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.138.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.139.0.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.139.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.139.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.139.64.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.140.0.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.140.128.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.140.192.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.140.64.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.141.0.0/18	Chunghwa Telecom Co.,Ltd.	16,384
223.141.64.0/18	Chunghwa Telecom Co.,Ltd.	16,384
42.70.0.0/18	Mobile Business Group	16,384
42.70.128.0/18	Mobile Business Group	16,384
42.70.192.0/18	Mobile Business Group	16,384
42.70.64.0/18	Mobile Business Group	16,384
42.71.0.0/18	Mobile Business Group	16,384
42.71.128.0/18	Mobile Business Group	16,384
42.71.192.0/18	Mobile Business Group	16,384
42.71.64.0/18	Mobile Business Group	16,384
42.72.0.0/18	Mobile Business Group	16,384
42.72.128.0/18	Mobile Business Group	16,384
42.72.192.0/18	Mobile Business Group	16,384
42.72.64.0/18	Mobile Business Group	16,384
42.76.0.0/18	Mobile Business Group	16,384
42.76.128.0/18	Mobile Business Group	16,384
42.76.192.0/18	Mobile Business Group	16,384
42.76.64.0/18	Mobile Business Group	16,384
42.77.0.0/18	Mobile Business Group	16,384
42.77.128.0/18	Mobile Business Group	16,384
42.77.192.0/18	Mobile Business Group	16,384
42.77.64.0/18	Mobile Business Group	16,384
42.78.0.0/18	Mobile Business Group	16,384
42.78.128.0/18	Mobile Business Group	16,384
42.78.192.0/18	Mobile Business Group	16,384
42.78.64.0/18	Mobile Business Group	16,384
42.79.0.0/18	Mobile Business Group	16,384
42.79.64.0/18	Mobile Business Group	16,384
114.137.0.0/19	Chunghwa Telecom Co.,Ltd.	8,192
114.137.32.0/19	Chunghwa Telecom Co.,Ltd.	8,192
114.137.64.0/19	Chunghwa Telecom Co.,Ltd.	8,192
114.137.96.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.136.0.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.136.32.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.136.64.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.136.96.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.138.0.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.138.32.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.138.64.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.138.96.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.141.128.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.141.160.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.141.192.0/19	Chunghwa Telecom Co.,Ltd.	8,192
223.141.224.0/19	Chunghwa Telecom Co.,Ltd.	8,192
42.79.128.0/19	Mobile Business Group	8,192
42.79.160.0/19	Mobile Business Group	8,192
42.79.192.0/19	Mobile Business Group	8,192
42.79.224.0/19	Mobile Business Group	8,192
116.59.48.0/20	Chunghwa Telecom Co.,Ltd.	4,096
116.59.24.0/21	Chunghwa Telecom Co.,Ltd.	2,048
221.120.0.0/21	Chunghwa Telecom Co.,Ltd.	2,048
221.120.72.0/21	Chunghwa Telecom Co.,Ltd.	2,048
223.143.192.0/21	Chunghwa Telecom Co.,Ltd.	2,048
223.143.200.0/21	Chunghwa Telecom Co.,Ltd.	2,048
223.143.208.0/21	Chunghwa Telecom Co.,Ltd.	2,048
223.143.216.0/21	Chunghwa Telecom Co.,Ltd.	2,048
223.143.224.0/21	Chunghwa Telecom Co.,Ltd.	2,048
223.143.232.0/21	Chunghwa Telecom Co.,Ltd.	2,048
116.59.12.0/22	Chunghwa Telecom Co.,Ltd.	1,024
221.120.12.0/22	Chunghwa Telecom Co.,Ltd.	1,024
221.120.40.0/22	Chunghwa Telecom Co.,Ltd.	1,024
221.120.8.0/22	Chunghwa Telecom Co.,Ltd.	1,024
111.71.242.0/23	Chunghwa Telecom Co.,Ltd.	512
116.59.10.0/23	Chunghwa Telecom Co.,Ltd.	512
221.120.32.0/23	Chunghwa Telecom Co.,Ltd.	512
221.120.36.0/23	Chunghwa Telecom Co.,Ltd.	512
221.120.42.0/23	Chunghwa Telecom Co.,Ltd.	512
221.120.46.0/23	Chunghwa Telecom Co.,Ltd.	512
221.120.48.0/23	Chunghwa Telecom Co.,Ltd.	512
221.120.58.0/23	Chunghwa Telecom Co.,Ltd.	512
111.71.193.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.194.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.195.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.196.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.197.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.208.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.209.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.212.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.213.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.214.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.215.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.216.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.217.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.218.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.220.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.221.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.222.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.223.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.225.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.226.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.227.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.228.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.229.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.230.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.240.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.248.0/24	Chunghwa Telecom Co.,Ltd.	256
111.71.254.0/24	Chunghwa Telecom Co.,Ltd.	256
116.59.0.0/24	Chunghwa Telecom Co.,Ltd.	256
116.59.2.0/24	Chunghwa Telecom Co.,Ltd.	256
116.59.8.0/24	Chunghwa Telecom Co.,Ltd.	256
116.59.9.0/24	Chunghwa Telecom Co.,Ltd.	256
211.79.33.0/24	Chunghwa Telecom Co.,Ltd.	256
211.79.34.0/24	Chunghwa Telecom Co.,Ltd.	256
211.79.35.0/24	Chunghwa Telecom Co.,Ltd.	256
211.79.36.0/24	Chunghwa Telecom Co.,Ltd.	256
211.79.38.0/24	Chunghwa Telecom Co.,Ltd.	256
211.79.40.0/24	Chunghwa Telecom Co.,Ltd.	256
211.79.41.0/24	Chunghwa Telecom Co.,Ltd.	256
211.79.42.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.19.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.20.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.21.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.23.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.24.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.30.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.34.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.38.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.40.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.41.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.44.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.45.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.50.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.51.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.56.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.57.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.80.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.81.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.82.0/24	Chunghwa Telecom Co.,Ltd.	256
221.120.83.0/24	Chunghwa Telecom Co.,Ltd.	256

Netblock	Company
2001:b400::/23	HiNet Taiwan
2001:b400:e000::/36	HiNet Taiwan
2001:b400:e100::/44	HiNet Taiwan
2001:b400:e110::/44	HiNet Taiwan
2001:b400:e120::/44	HiNet Taiwan
2001:b400:e130::/44	HiNet Taiwan
2001:b400:e140::/44	HiNet Taiwan
2001:b400:e150::/44	HiNet Taiwan
2001:b400:e160::/44	HiNet Taiwan
2001:b400:e170::/44	HiNet Taiwan
2001:b400:e3e0::/44	HiNet Taiwan
2001:b400:e3f0::/44	HiNet Taiwan
2001:b400:e500::/44	HiNet Taiwan
2001:b400:e510::/44	HiNet Taiwan
2001:b400:e520::/44	HiNet Taiwan
2001:b400:e530::/44	HiNet Taiwan
2001:b400:e540::/44	HiNet Taiwan
2001:b400:e550::/44	HiNet Taiwan
2001:b400:e560::/44	HiNet Taiwan
2001:b400:e570::/44	HiNet Taiwan
2001:b400:e600::/44	HiNet Taiwan
2001:b400:e610::/44	HiNet Taiwan
2001:b400:e620::/44	HiNet Taiwan
2001:b400:e630::/44	HiNet Taiwan
2001:b400:e640::/44	HiNet Taiwan
2001:b400:e650::/44	HiNet Taiwan
2001:b400:e660::/44	HiNet Taiwan
2001:b400:e670::/44	HiNet Taiwan
2001:b400:d208::/45	HiNet Taiwan
2001:b400:d408::/45	HiNet Taiwan
2001:b400:f208::/45	HiNet Taiwan
2001:b400:f218::/45	HiNet Taiwan
2001:b400:f408::/45	HiNet Taiwan
2001:b400:f418::/45	HiNet Taiwan

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WHOIS Details

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                                                ASHandle:       AS17421
                                                OrgID:          AS17421
                                                ASName:         AS17421
                                                ASNumber:       AS17421
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 31 domain names hosted across 28 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
221.120.57.28	██████████	2
42.74.109.17	██████████	2
221.120.43.157	██████████	2
111.70.8.238	██████████	1
114.136.133.63	██████	1
114.137.23.244	██████████	1
223.137.141.197	██████████	1
111.70.31.184	██████████	1
223.140.76.154	██████████	1
111.70.10.85	██████████	1

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Peers

There is 1 peer for this ASN.

Peers	Name
AS3462	Data Communication Business Group

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ASN API

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Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS3462	Data Communication Business Group

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ASN API

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Downstreams

There are no downstreams for this ASN.

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ASN API

ASN Database Download

Pingable IPs

1,842 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
2001:b400:e4df:f189:3cab:24ff:fe36:1385	AS17421 Mobile Business Group	`24.55ms` from Chang-hua, TW
2001:b400:e247:e224:21f4:87c3:e9bc:e05d	AS17421 Mobile Business Group	`12.36ms` from Chang-hua, TW
2001:b400:e534:50e8:a5d7:c866:676d:3239	AS17421 Mobile Business Group	`18.37ms` from Chang-hua, TW
2001:b400:e505:3f7b:483c:f998:fd68:52	AS17421 Mobile Business Group	`14.56ms` from Chang-hua, TW
2001:b400:e60a:8e10:5c09:8dff:fe71:7bb3	AS17421 Mobile Business Group	`26.73ms` from Chang-hua, TW
2001:b400:e435:8b9a:75fe:8217:e7bc:19d2	AS17421 Mobile Business Group	`13.88ms` from Chang-hua, TW
2001:b400:e57f:d563:5050:2bff:fe48:8f31	AS17421 Mobile Business Group	`20.75ms` from Chang-hua, TW
2001:b400:e51f:b683:a8c9:580f:64d3:52b0	AS17421 Mobile Business Group	`14.38ms` from Chang-hua, TW
2001:b400:e389:400d:b996:c10:f5af:5e73	AS17421 Mobile Business Group	`17.86ms` from Chang-hua, TW
2001:b400:e75a:4b42:2c5f:75ff:fea5:472b	AS17421 Mobile Business Group	`18.74ms` from Chang-hua, TW
2001:b400:e44d:bad4:ce3:beff:fe93:2044	AS17421 Mobile Business Group	`15.29ms` from Chang-hua, TW
2001:b400:e33f:bf11:1883:67ff:fec0:81db	AS17421 Mobile Business Group	`21.86ms` from Chang-hua, TW
2001:b400:e280:2fc5:49d2:1998:9c99:e66f	AS17421 Mobile Business Group	`15.74ms` from Chang-hua, TW
2001:b400:e63c:8fe1:588e:1acc:517:aa	AS17421 Mobile Business Group	`15.72ms` from Chang-hua, TW
2001:b400:e577:c4f8:14bd:ff10:a97d:bb1f	AS17421 Mobile Business Group	`30.65ms` from Chang-hua, TW
2001:b400:e124:5ab7:91c8:2b59:9db0:ab48	AS17421 Mobile Business Group	`34.95ms` from Chang-hua, TW
2001:b400:e673:99b0:7442:92ff:fee2:e2d2	AS17421 Mobile Business Group	`22.48ms` from Chang-hua, TW
2001:b400:e782:59c0:a796:4949:8ef0:106	AS17421 Mobile Business Group	`26.39ms` from Chang-hua, TW
2001:b400:e2a5:44fa:f4e3:edff:fe27:e1a	AS17421 Mobile Business Group	`16.58ms` from Chang-hua, TW
2001:b400:e43a:e628:735:c3d8:f9b5:694f	AS17421 Mobile Business Group	`23.12ms` from Chang-hua, TW
2001:b400:e7a2:d609:5027:2d76:790d:fd90	AS17421 Mobile Business Group	`16.20ms` from Chang-hua, TW
2001:b400:e43e:a0c0:5cad:8b54:9004:ffac	AS17421 Mobile Business Group	`24.50ms` from Chang-hua, TW
2001:b400:e11c:9b24:5437:5cff:fedd:dfa	AS17421 Mobile Business Group	`28.57ms` from Chang-hua, TW
2001:b400:e267:3916:7cd0:962b:d92e:3ec9	AS17421 Mobile Business Group	`23.07ms` from Chang-hua, TW
2001:b400:e7db:d5ea:309e:b2ff:fe50:3df9	AS17421 Mobile Business Group	`17.46ms` from Chang-hua, TW

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
72.166.112.221	AS209 CenturyLink Communications, LLC	`1.02ms` from Ashburn, US
192.144.135.205	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.76ms` from Beijing, CN
83.135.82.141	AS8881 1&1 Versatel Deutschland GmbH	`6.11ms` from Berlin, DE
72.230.96.13	AS11351 Charter Communications Inc	`17.99ms` from Chicago, US
179.184.66.237	AS18881 TELEFÔNICA BRASIL S.A	`12.91ms` from Curitiba, BR
72.200.197.237	AS22773 Cox Communications Inc.	`8.22ms` from Dallas, US
63.34.96.13	AS16509 Amazon.com, Inc.	`0.14ms` from Dublin, IE
212.0.68.221	AS8828 PJSC Rostelecom	`18.40ms` from Krasnoyarsk, RU
109.156.28.93	AS2856 British Telecommunications PLC	`2.96ms` from London, GB
51.14.85.141	AS2856 British Telecommunications PLC	`2.65ms` from London, GB
95.251.126.109	AS3269 Telecom Italia S.p.A.	`9.70ms` from Milan, IT
24.89.162.61	AS6128 Cablevision Systems Corp.	`4.22ms` from New York City, US
193.90.220.173	AS2116 GLOBALCONNECT AS	`1.84ms` from Oslo, NO
186.73.199.173	AS11556 Cable & Wireless Panama	`0.89ms` from Panama, PA
66.94.3.13	AS21928 T-Mobile USA, Inc.	`8.68ms` from Seattle, US
69.7.42.13	AS26792 CSS Integration, Inc.	`6.30ms` from Seattle, US
118.39.234.125	AS4766 Korea Telecom	`8.04ms` from Seoul, KR
66.79.249.77	AS11666 Nexicom Inc.	`0.19ms` from Toronto, CA
188.95.97.61	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`0.53ms` from Amsterdam, NL
109.235.38.189	AS50522 Sewan Nederland B.V.	`0.63ms` from Amsterdam, NL
69.254.169.109	AS7922 Comcast Cable Communications, LLC	`14.78ms` from Atlanta, US
172.177.220.77	AS8075 Microsoft Corporation	`0.18ms` from Boydton, US
35.187.154.205	AS396982 Google LLC	`0.16ms` from Chang-hua, TW
73.34.126.173	AS7922 Comcast Cable Communications, LLC	`3.04ms` from Denver, US
103.52.63.173	AS150312 S. Ahmed Internet Service	`6.09ms` from Dhaka, BD

Traceroute

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

traceroute -a -n -q1 -f2 -m8 42.76.188.170

traceroute to 42.76.188.170 (42.76.188.170): 8 hops max, 52 byte packets

2 [AS140641] 150.107.146.10 2.204 ms

3 *

4 [AS140641] 150.107.144.21 0.346 ms

5 [AS4755] 121.241.91.97 28.887 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Ahmedabad, IN

On September 18th 2025

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS17421 at robtex.

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