Autonomous System details

AS17421

Mobile Business Group · twnic.net.tw

Taiwan

BitTorrent

Mobile

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AS17421 – Mobile Business Group

Field	Value
Country	Taiwan
Website	twnic.net.tw
Hosted domains	31
IPv4 addresses	1,633,792
IPv6 addresses	40,570,331,909,040,783,556,931,162,734,592
ASN type	Business
Registry	apnic
Updated	22 days ago on Nov 06, 2025

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
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
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
221.120.30.0/24	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 31 domain names hosted across 28 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
42.74.109.17	██████████	2
221.120.43.157	██████████	2
221.120.57.28	██████████	2
42.78.129.173	██████████	1
111.70.16.45	██████████	1
221.120.2.250	██████████	1
221.120.2.202	██████████	1
111.70.10.85	██████████	1
111.70.5.105	██████████	1
114.137.23.244	██████████	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

1,711 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
2001:b400:e755:3f75:614b:6e46:d359:8c0d	AS17421 Mobile Business Group	`16.58ms` from Chang-hua, TW
2001:b400:e754:2b3b:a437:8aff:fe67:cfaf	AS17421 Mobile Business Group	`19.26ms` from Chang-hua, TW
2001:b400:e734:4d58:4cd3:2c90:37d1:db44	AS17421 Mobile Business Group	`25.55ms` from Chang-hua, TW
2001:b400:e234:fa1d:b627:4fc:88e3:f484	AS17421 Mobile Business Group	`12.26ms` from Chang-hua, TW
2001:b400:e2aa:a040:94fa:f693:815f:e54b	AS17421 Mobile Business Group	`15.70ms` from Chang-hua, TW
2001:b400:e54d:8284:5cf2:f67d:790c:c494	AS17421 Mobile Business Group	`14.24ms` from Chang-hua, TW
2001:b400:e2a8:30bb:c4b4:62ff:fec1:6c24	AS17421 Mobile Business Group	`15.17ms` from Chang-hua, TW
2001:b400:e66a:2c47:585c:a3ff:fe19:7889	AS17421 Mobile Business Group	`18.08ms` from Chang-hua, TW
2001:b400:e332:281c:3486:3154:1e12:cebb	AS17421 Mobile Business Group	`18.67ms` from Chang-hua, TW
2001:b400:e707:c2cf:d421:f888:59f9:2903	AS17421 Mobile Business Group	`22.93ms` from Chang-hua, TW
2001:b400:e511:d625:4c34:6def:5767:3d51	AS17421 Mobile Business Group	`14.33ms` from Chang-hua, TW
2001:b400:e508:e368:8ccc:8d4e:73d0:1d04	AS17421 Mobile Business Group	`14.32ms` from Chang-hua, TW
2001:b400:e519:ca7f:861:df58:384c:892	AS17421 Mobile Business Group	`18.28ms` from Chang-hua, TW
2001:b400:e576:90b9:11ff:5908:5516:5047	AS17421 Mobile Business Group	`14.44ms` from Chang-hua, TW
2001:b400:e456:d88e:d153:1872:6d80:fc0f	AS17421 Mobile Business Group	`18.19ms` from Chang-hua, TW
2001:b400:e7d2:e12d:723b:d5df:3817:9c58	AS17421 Mobile Business Group	`17.36ms` from Chang-hua, TW
2001:b400:e25b:5147:60cb:e0ff:fed5:17de	AS17421 Mobile Business Group	`16.92ms` from Chang-hua, TW
2001:b400:e526:fce9:e0bc:47ff:feab:6474	AS17421 Mobile Business Group	`28.90ms` from Chang-hua, TW
2001:b400:e4a8:da6b:102a:8121:4e09:ea28	AS17421 Mobile Business Group	`19.40ms` from Chang-hua, TW
2001:b400:e246:5661:2086:28ff:fe9c:dfa1	AS17421 Mobile Business Group	`10.39ms` from Chang-hua, TW
2001:b400:e16b:bb6:9708:1b2d:5424:d3c3	AS17421 Mobile Business Group	`16.91ms` from Chang-hua, TW
2001:b400:e2a5:a5fe:6e93:8cb1:a294:b7d7	AS17421 Mobile Business Group	`21.49ms` from Chang-hua, TW
2001:b400:e35a:1fdf:f5d6:bb24:8124:d0cb	AS17421 Mobile Business Group	`21.62ms` from Chang-hua, TW
2001:b400:e667:90bc:dcbc:1dff:fe8d:faab	AS17421 Mobile Business Group	`23.71ms` from Chang-hua, TW
2001:b400:e540:5474:c83:3ce1:c4a0:b693	AS17421 Mobile Business Group	`31.70ms` 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
81.241.151.93	AS5432 Proximus NV	`5.12ms` from Amsterdam, NL
181.126.14.205	AS23201 Telecel S.A.	`9.99ms` from Asuncion, PY
4.42.101.189	AS3356 Level 3 Parent, LLC	`0.36ms` from Atlanta, US
162.231.76.157	AS7018 AT&T Enterprises, LLC	`6.88ms` from Atlanta, US
45.95.221.205	AS48955 Internet Resources Management SRL	`0.59ms` from Bucharest, RO
179.184.66.237	AS18881 TELEFÔNICA BRASIL S.A	`13.06ms` from Curitiba, BR
208.180.78.45	AS19108 Optimum	`3.36ms` from Dallas, US
3.28.2.253	AS16509 Amazon.com, Inc.	`0.10ms` from Dubai, AE
87.149.213.237	AS3320 Deutsche Telekom AG	`4.68ms` from Duesseldorf, DE
89.182.68.237	AS13045 htp GmbH	`6.49ms` from Frankfurt am Main, DE
113.190.195.253	AS45899 VNPT Corp	`1.20ms` from Hanoi, VN
137.189.87.253	AS3661 The Chinese University of Hong Kong	`1.36ms` from Hong Kong, HK
111.15.91.109	AS24444 Shandong Mobile Communication Company Limited	`11.45ms` from Jinan, CN
67.218.223.13	AS46320 BLU Fibre Networks inc.	`0.39ms` from Montreal, CA
119.181.143.93	AS4837 CHINA UNICOM China169 Backbone	`4.74ms` from Qingdao, CN
45.185.33.93	AS269363 S GALVAO TELECOMUNICACOES	`8.27ms` from Sao Paulo, BR
212.227.238.29	AS8560 IONOS SE	`1.25ms` from Secaucus, US
43.227.118.253	AS45974 NHNCLOUD	`7.23ms` from Seoul, KR
121.132.91.237	AS4766 Korea Telecom	`3.24ms` from Seoul, KR
164.46.75.141	AS4694 IDC Frontier Inc.	`3.61ms` from Tokyo, JP
77.34.92.13	AS12389 PJSC Rostelecom	`0.99ms` from Vladivostok, RU
108.59.5.189	AS30633 Leaseweb USA, Inc.	`0.10ms` from Washington, US
182.138.234.237	AS4134 CHINANET-BACKBONE	`3.52ms` from Chengdu, CN
24.127.238.237	AS7922 Comcast Cable Communications, LLC	`4.91ms` from Flint, US
135.125.43.253	AS16276 OVH SAS	`1.64ms` from Gravelines, FR

Traceroute

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

traceroute -a -n -q1 -m11 223.143.218.92

traceroute to 223.143.218.92 (223.143.218.92): 11 hops max, 52 byte packets

1 [AS140627] 103.112.0.1 0.118 ms

2 [AS140627] 103.151.64.29 108.974 ms

3 *

4 *

5 *

6 *

7 [] 220.128.17.81 173.92 ms

8 [AS3462] 210.65.126.105 175.913 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Agana Heights Village, GU

On November 22nd 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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