Autonomous System details

AS17421

Mobile Business Group  ·  twnic.net.tw

Taiwan

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AS17421 – Mobile Business Group

Field Value
Country Taiwan
Website twnic.net.tw
Hosted domains 30
IPv4 addresses 1,643,520
IPv6 addresses 40,570,331,909,040,783,556,931,162,734,592
ASN type Business
Registry apnic
Updated 3 months ago on Nov 06, 2025

IP Ranges

Netblock Company Num of IPs
42.74.0.0/16 Mobile Business Group 65,536
42.75.0.0/16 Mobile Business Group 65,536
111.80.0.0/16 Chunghwa Telecom Co.,Ltd. 65,536
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
111.82.0.0/17 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
42.70.0.0/18 Mobile Business Group 16,384
42.70.64.0/18 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
42.71.0.0/18 Mobile Business Group 16,384
42.71.64.0/18 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
42.72.0.0/18 Mobile Business Group 16,384
42.72.64.0/18 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
42.76.0.0/18 Mobile Business Group 16,384
42.76.64.0/18 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
42.77.0.0/18 Mobile Business Group 16,384
42.77.64.0/18 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
42.78.0.0/18 Mobile Business Group 16,384
42.78.64.0/18 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
42.79.0.0/18 Mobile Business Group 16,384
42.79.64.0/18 Mobile Business Group 16,384
111.70.0.0/18 Chunghwa Telecom Co.,Ltd. 16,384
111.71.0.0/18 Chunghwa Telecom Co.,Ltd. 16,384
111.71.64.0/18 Chunghwa Telecom Co.,Ltd. 16,384
111.71.128.0/18 Chunghwa Telecom Co.,Ltd. 16,384
111.81.0.0/18 Chunghwa Telecom Co.,Ltd. 16,384
111.81.64.0/18 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
111.83.0.0/18 Chunghwa Telecom Co.,Ltd. 16,384
111.83.64.0/18 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
114.136.0.0/18 Chunghwa Telecom Co.,Ltd. 16,384
114.136.64.0/18 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
114.137.128.0/18 Chunghwa Telecom Co.,Ltd. 16,384
114.137.192.0/18 Chunghwa Telecom Co.,Ltd. 16,384
116.59.64.0/18 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
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
223.137.64.0/18 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
223.138.128.0/18 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
223.139.64.0/18 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
223.140.0.0/18 Chunghwa Telecom Co.,Ltd. 16,384
223.140.64.0/18 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
223.141.0.0/18 Chunghwa Telecom Co.,Ltd. 16,384
223.141.64.0/18 Chunghwa Telecom Co.,Ltd. 16,384
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
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
223.143.128.0/19 Chunghwa Telecom Co.,Ltd. 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
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
221.120.8.0/22 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
221.120.76.0/22 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
223.143.240.0/23 Chunghwa Telecom Co.,Ltd. 512
223.143.242.0/23 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
111.71.252.0/24 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
211.79.37.0/24 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
221.120.30.0/24 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
221.120.72.0/24 Chunghwa Telecom Co.,Ltd. 256
221.120.73.0/24 Chunghwa Telecom Co.,Ltd. 256
221.120.74.0/24 Chunghwa Telecom Co.,Ltd. 256
221.120.75.0/24 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 30 domain names hosted across 27 IP addresses on this ASN.

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IP Address Domain Domains on this IP
221.120.57.28 ██████████ 2
221.120.43.157 ██████████ 2
42.74.109.17 ██████████ 2
111.70.5.105 ██████████ 1
221.120.2.250 ██████████ 1
111.70.21.83 ██████████ 1
111.70.5.86 ██████████ 1
111.70.10.85 ██████████ 1
111.70.16.45 ██████████ 1
42.78.129.173 ██████████ 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 & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS3462 Data Communication Business Group
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

1,825 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
2001:b400:e738:f1af:69df:c1d5:17b9:5cc3 AS17421 Mobile Business Group 33.77ms from Hong Kong, HK
2001:b400:e2a3:3b9d:fd24:2c74:f4ef:4a11 AS17421 Mobile Business Group 28.78ms from Hong Kong, HK
2001:b400:e3d6:f08a:a9ae:9c4:d93c:f231 AS17421 Mobile Business Group 20.91ms from Hong Kong, HK
2001:b400:e2f1:b83a:5462:797a:2bcc:d549 AS17421 Mobile Business Group 21.75ms from Hong Kong, HK
2001:b400:e787:7b8f:45f7:889d:ce4:3dda AS17421 Mobile Business Group 32.66ms from Hong Kong, HK
2001:b400:e26a:2c93:b889:a5ff:fedb:df4c AS17421 Mobile Business Group 35.59ms from Hong Kong, HK
2001:b400:e627:19ea:ba02:a405:1fdd:93c9 AS17421 Mobile Business Group 27.56ms from Hong Kong, HK
2001:b400:e402:5c5f:14ef:ffdb:9fa9:ca06 AS17421 Mobile Business Group 24.51ms from Hong Kong, HK
2001:b400:e20e:8bd2:8099:b01e:8731:4dfe AS17421 Mobile Business Group 24.25ms from Hong Kong, HK
2001:b400:e547:a872:3db8:b782:323d:4904 AS17421 Mobile Business Group 30.88ms from Hong Kong, HK
2001:b400:e62e:5ebe:53f:b121:2aba:8789 AS17421 Mobile Business Group 28.05ms from Hong Kong, HK
2001:b400:e508:50a5:7a2d:eb17:3ffe:4711 AS17421 Mobile Business Group 44.18ms from Hong Kong, HK
2001:b400:e573:ac59:43c:4bff:fee3:3a15 AS17421 Mobile Business Group 25.32ms from Hong Kong, HK
2001:b400:e3e5:51f4:25e1:ad3d:e633:3d58 AS17421 Mobile Business Group 26.93ms from Hong Kong, HK
2001:b400:e264:376c:ee1b:f405:72a0:d94f AS17421 Mobile Business Group 40.07ms from Hong Kong, HK
2001:b400:e3ff:f86:acea:b0ff:fe57:5a5a AS17421 Mobile Business Group 23.88ms from Hong Kong, HK
2001:b400:e649:cd04:9a53:6e2e:5970:54dc AS17421 Mobile Business Group 29.43ms from Hong Kong, HK
2001:b400:e252:e2e8:be0d:13ec:8ee7:8488 AS17421 Mobile Business Group 30.43ms from Hong Kong, HK
2001:b400:e303:29e8:65d6:d5f6:137f:3330 AS17421 Mobile Business Group 37.47ms from Hong Kong, HK
2001:b400:e521:373:2bd2:5960:71ef:c489 AS17421 Mobile Business Group 33.66ms from Hong Kong, HK
2001:b400:e3e9:e5dd:dc9:afa8:91fe:fcde AS17421 Mobile Business Group 25.51ms from Hong Kong, HK
2001:b400:e382:34cd:2951:8605:ad82:bc5a AS17421 Mobile Business Group 28.50ms from Hong Kong, HK
2001:b400:e618:213e:63fd:c1ed:93cd:f51 AS17421 Mobile Business Group 28.44ms from Hong Kong, HK
2001:b400:e568:84a:4131:5ade:abe4:d4f7 AS17421 Mobile Business Group 35.09ms from Hong Kong, HK
2001:b400:e445:5b60:809e:2f2:f493:4f41 AS17421 Mobile Business Group 25.39ms from Hong Kong, HK

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
119.251.74.237 AS4837 CHINA UNICOM China169 Backbone 6.70ms from Beijing, CN
188.237.112.109 AS8926 Moldtelecom SA 3.01ms from Chisinau, MD
62.158.98.253 AS3320 Deutsche Telekom AG 6.38ms from Duesseldorf, DE
217.234.141.29 AS3320 Deutsche Telekom AG 6.73ms from Frankfurt am Main, DE
73.77.173.93 AS7922 Comcast Cable Communications, LLC 8.37ms from Houston, US
175.127.162.77 AS9318 SK Broadband Co Ltd 5.46ms from Incheon, KR
180.69.181.221 AS9318 SK Broadband Co Ltd 2.54ms from Incheon, KR
31.42.160.253 AS49461 PP "Podilsky Intelectualni sistemy" 0.29ms from Kyiv, UA
213.199.34.45 AS51167 Contabo GmbH 0.20ms from Lauterbourg, FR
151.138.14.253 AS6482 Thryv 3.82ms from Phoenix, US
34.204.166.237 AS14618 Amazon.com, Inc. 0.38ms from Reston, US
64.185.239.253 AS398091 zx4.com 1.06ms from Salt Lake City, US
14.7.107.253 AS17858 LG POWERCOMM 3.65ms from Seoul, KR
70.30.102.109 AS577 Bell Canada 1.78ms from Toronto, CA
72.166.112.221 AS209 CenturyLink Communications, LLC 1.08ms from Ashburn, US
49.208.48.61 AS4538 China Education and Research Network Center 19.64ms from Beijing, CN
62.201.67.141 AS5483 Magyar Telekom Plc. 4.77ms from Budapest, HU
218.101.137.125 AS17864 SK Broadband Co Ltd 2.28ms from Incheon, KR
103.211.23.189 AS135872 GTPL KCBPL BROADBAND PVT LTD 0.15ms from Kolkata, IN
92.71.158.45 AS41354 ITS Technology Group Limited 0.56ms from London, GB
66.10.100.205 AS7018 AT&T Enterprises, LLC 4.24ms from Los Angeles, US
217.248.72.189 AS3320 Deutsche Telekom AG 4.39ms from Nuernberg, DE
56.124.104.237 AS16509 Amazon.com, Inc. 0.14ms from Osasco, BR
203.231.92.205 AS9848 SEJONG NETWORKS 0.72ms from Seoul, KR
62.251.119.29 AS1136 KPN B.V. 2.73ms from Amsterdam, NL

Traceroute

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

$
traceroute -a -n -q1 -m5 42.72.187.32
traceroute to 42.72.187.32 (42.72.187.32): 5 hops max, 52 byte packets
1 [AS208450] 45.136.59.1 11.716 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Aktau, KZ
On

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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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