221.120.21.0/24

AS17421 · Mobile Business Group

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

Summary

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

WHOIS Details

inetnum:        221.120.0.0 - 221.120.31.255
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
221.120.128.0/24	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

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

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
69.232.242.248	AS7018 AT&T Enterprises, LLC	`11.93ms` from Atlanta, US
169.255.169.8	AS327872 IBITS Internet (pty) Ltd	`0.86ms` from Cape Town, ZA
73.209.2.152	AS7922 Comcast Cable Communications, LLC	`4.33ms` from Chicago, US
8.208.20.120	AS45102 Alibaba (US) Technology Co., Ltd.	`0.49ms` from London, GB
195.103.223.40	AS3269 Telecom Italia S.p.A.	`4.01ms` from Milan, IT
73.30.45.88	AS7922 Comcast Cable Communications, LLC	`8.56ms` from Morris Plains, US
24.58.196.8	AS11351 Charter Communications Inc	`8.26ms` from New York City, US
131.196.16.8	AS61587 C. HOKI DA COSTA E CIA LTDA - ME	`16.91ms` from Osasco, BR
68.91.156.56	AS7018 AT&T Enterprises, LLC	`4.29ms` from San Jose, US
135.171.170.120	AS8075 Microsoft Corporation	`0.42ms` from Singapore, SG
199.232.172.88	AS54113 Fastly, Inc.	`0.10ms` from Stockholm, SE
115.120.196.120	AS55990 Huawei Cloud Service data center	`2.83ms` from Suzhou, CN
153.143.229.136	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.82ms` from Tokyo, JP
38.107.226.40	AS63023 GTHost	`0.09ms` from Ashburn, US
3.31.82.200	AS8987 Amazon Data Services Ireland Ltd	`0.69ms` from Boardman, US
213.22.217.104	AS2860 NOS COMUNICACOES, S.A.	`7.79ms` from Braga, PT
117.207.250.232	AS9829 National Internet Backbone	`7.13ms` from Delhi, IN
54.74.215.88	AS16509 Amazon.com, Inc.	`0.19ms` from Dublin, IE
93.203.37.88	AS3320 Deutsche Telekom AG	`2.05ms` from Frankfurt am Main, DE
188.155.233.120	AS6730 Sunrise GmbH	`2.60ms` from Geneve, CH
47.82.83.104	AS45102 Alibaba (US) Technology Co., Ltd.	`0.69ms` from Hong Kong, HK
49.244.117.136	AS23752 Nepal Telecommunications Corporation, Internet Services,	`1.17ms` from Kathmandu, NP
212.100.238.136	AS15395 Rackspace Ltd.	`0.94ms` from London, GB
120.72.38.216	AS4837 CHINA UNICOM China169 Backbone	`3.97ms` from Nanjing, CN
74.72.7.88	AS12271 Charter Communications Inc	`7.91ms` from New York City, US

Traceroute

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

traceroute -a -n -q1 -f3 -m7 221.120.21.165

traceroute to 221.120.21.165 (221.120.21.165): 7 hops max, 52 byte packets

3 [AS55293] 69.48.136.14 0.436 ms

4 [AS174] 38.142.132.57 0.652 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Detroit, US

On February 7th 2026

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