221.120.72.0/24

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:        [email protected] 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

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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
73.124.55.200	AS7922 Comcast Cable Communications, LLC	`6.08ms` from Boca Raton, US
105.75.96.56	AS36884 Wana Corporate	`8.77ms` from Casablanca, MA
108.208.182.104	AS7018 AT&T Enterprises, LLC	`14.22ms` from Chicago, US
86.46.47.248	AS5466 Eircom Limited	`2.54ms` from Dublin, IE
86.190.137.24	AS2856 British Telecommunications PLC	`2.23ms` from Erith, GB
1.205.60.56	AS4134 CHINANET-BACKBONE	`3.39ms` from Guiyang, CN
95.166.50.216	AS48101 Trooli Ltd.	`1.07ms` from London, GB
136.226.214.216	AS62044 Zscaler Switzerland GmbH	`0.13ms` from Madrid, ES
76.153.86.72	AS7922 Comcast Cable Communications, LLC	`4.12ms` from Miami, US
120.50.174.248	AS18092 Kyushu Tele Communications Company	`13.47ms` from Osaka, JP
98.85.116.88	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
152.0.158.232	AS6400 Compañía Dominicana de Teléfonos S. A.	`3.41ms` from Santo Domingo, DO
175.201.46.200	AS4766 Korea Telecom	`5.66ms` from Seoul, KR
183.123.140.216	AS4766 Korea Telecom	`4.23ms` from Seoul, KR
211.214.157.40	AS9318 SK Broadband Co Ltd	`1.65ms` from Seoul, KR
211.157.139.200	AS23724 IDC, China Telecommunications Corporation	`3.75ms` from Tianjin, CN
60.82.119.136	AS17676 SoftBank Corp.	`4.45ms` from Tokyo, JP
4.241.17.120	AS8075 Microsoft Corporation	`0.15ms` from Tokyo, JP
173.240.1.248	AS14453 ADVANCED KNOWLEDGE NETWORKS	`4.24ms` from Toronto, CA
86.33.16.152	AS205714 Telemach Hrvatska d.o.o.	`1.15ms` from Zagreb, HR
47.189.8.8	AS5650 Frontier Communications of America, Inc.	`1.82ms` from Dallas, US
97.213.110.232	AS6167 Verizon Business	`12.13ms` from Denver, US
91.7.8.56	AS3320 Deutsche Telekom AG	`4.24ms` from Duesseldorf, DE
14.168.64.56	AS45899 VNPT Corp	`3.54ms` from Ho Chi Minh City, VN
104.174.171.8	AS20001 Charter Communications Inc	`5.52ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -m5 221.120.72.243

traceroute to 221.120.72.243 (221.120.72.243): 5 hops max, 52 byte packets

1 [AS15169] 142.251.255.195 184.395 ms

2 [AS15169] 192.178.106.174 184.23 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Moncks Corner, US

On November 28th 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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