221.120.75.0/24

AS17421 · Mobile Business Group

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Summary

Country	Taiwan
Domain	cht.com.tw
ASN	AS17421
Registry	TWNIC
ID	EMOME-NET

WHOIS Details

inetnum:        221.120.64.0 - 221.120.79.255
netname:        EMOME-NET
descr:          Chunghwa Telecom Co.,Ltd.
descr:          No.21-3, Sec. 1, Xinyi Rd., Taipei 10048, Taiwan, R.O.C.
descr:          Taipei Taiwan
country:        TW
admin-c:        CFK7-TW
tech-c:         CFK7-TW
mnt-by:         MAINT-TW-TWNIC
changed:        network-adm@hinet.net 20040920
status:         ASSIGNED NON-PORTABLE
remarks:        This information has been partially mirrored by APNIC from
remarks:        TWNIC. To obtain more specific information, please use the
remarks:        TWNIC whois server at whois.twnic.net.
source:         TWNIC

Nearby Ranges

BGP prefixes that overlap with 221.120.0.0/16

Range	ASN	Company	Num of IPs
221.120.128.0/20	AS4857	IP EXCHANGE International Networks	4,096
221.120.168.0/21	AS18070	Global Network Core Co.,Ltd.	2,048
221.120.96.0/21	AS135076	INFOCOM LIMITED	2,048
221.120.160.0/22	AS38901	EZECOM CO., LTD.	1,024
221.120.164.0/22	AS64098	TASMANET	1,024
221.120.97.0/24	AS135076	INFOCOM LIMITED	256
221.120.98.0/24	AS135076	INFOCOM LIMITED	256
221.120.99.0/24	AS135076	INFOCOM LIMITED	256
221.120.100.0/24	AS135076	INFOCOM LIMITED	256
221.120.81.0/24	AS17421	Chunghwa Telecom Co.,Ltd.	256
221.120.82.0/24	AS17421	Chunghwa Telecom Co.,Ltd.	256
221.120.83.0/24	AS17421	Chunghwa Telecom Co.,Ltd.	256
221.120.238.0/24	AS17557	Ufone	256
221.120.144.0/24	AS4857	IP EXCHANGE International Networks	256
221.120.80.0/24	AS17421	Chunghwa Telecom Co.,Ltd.	256
221.120.101.0/24	AS135076	INFOCOM LIMITED	256
221.120.102.0/24	AS135076	INFOCOM LIMITED	256
221.120.103.0/24	AS135076	INFOCOM LIMITED	256
221.120.96.0/24	AS135076	INFOCOM LIMITED	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
111.42.57.200	AS132525 HeiLongJiang Mobile Communication Company Limited	`19.56ms` from Beijing, CN
52.247.139.72	AS8075 Microsoft Corporation	`0.65ms` from Boydton, US
123.145.226.136	AS4837 CHINA UNICOM China169 Backbone	`2.28ms` from Chongqing, CN
3.134.135.248	AS16509 Amazon.com, Inc.	`0.12ms` from Columbus, US
34.247.60.184	AS16509 Amazon.com, Inc.	`0.13ms` from Dublin, IE
82.29.179.200	AS47583 Hostinger International Limited	`0.43ms` from Frankfurt am Main, DE
87.151.252.40	AS3320 Deutsche Telekom AG	`3.97ms` from Hamburg, DE
42.114.133.56	AS18403 FPT Telecom Company	`9.41ms` from Hanoi, VN
190.3.197.200	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`4.38ms` from Medellin, CO
142.118.40.120	AS577 Bell Canada	`1.68ms` from Montreal, CA
46.38.62.104	AS52201 OOO Suntel	`0.84ms` from Moscow, RU
92.101.20.152	AS12389 PJSC Rostelecom	`1.86ms` from Saint Petersburg, RU
191.118.182.184	AS27995 CLARO CHILE S.A.	`17.78ms` from Santiago, CL
20.196.112.232	AS8075 Microsoft Corporation	`0.32ms` from Seoul, KR
126.70.6.8	AS17676 SoftBank Corp.	`3.95ms` from Tokyo, JP
143.42.15.40	AS63949 Akamai Connected Cloud	`0.13ms` from Toronto, CA
102.209.254.200	AS328539 Giga for Telecommunication and Technology Limited	`2.05ms` from Tripoli, LY
51.137.85.72	AS8075 Microsoft Corporation	`0.25ms` from Amsterdam, NL
96.37.237.40	AS20115 Charter Communications LLC	`11.35ms` from Atlanta, US
113.249.95.88	AS134420 Chongqing Telecom	`0.48ms` from Chongqing, CN
95.179.163.88	AS20473 The Constant Company, LLC	`0.16ms` from Frankfurt am Main, DE
175.44.85.136	AS4837 CHINA UNICOM China169 Backbone	`8.36ms` from Fuzhou, CN
51.255.150.184	AS16276 OVH SAS	`0.04ms` from Gravelines, FR
8.215.196.136	AS45102 Alibaba (US) Technology Co., Ltd.	`0.38ms` from Jakarta, ID
86.176.52.56	AS2856 British Telecommunications PLC	`6.51ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f6 -m13 221.120.75.6

traceroute to 221.120.75.6 (221.120.75.6): 13 hops max, 52 byte packets

6 [] 206.72.210.25 116.611 ms

7 *

8 *

9 *

10 [AS3462] 211.22.226.229 150.777 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On October 17th 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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