203.66.101.0/24

AS23675 · Taiwan Semiconductor Manufactoring Company, Ltd.

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Summary

Country	Taiwan
Domain	cht.com.tw
ASN	AS23675
Parent Range	203.66.0.0/16
Registry	TWNIC
ID	TAIWAN-SEMICONDU-HC-TW

WHOIS Details

inetnum:        203.66.101.0 - 203.66.101.255
netname:        TAIWAN-SEMICONDU-HC-TW
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:        JL5545-TW
tech-c:         JL5545-TW
mnt-by:         MAINT-TW-TWNIC
changed:        [email protected] 20121120
status:
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


person:         Zeng Mo Yi
address:        Taiwan Semiconductor Manufacturing Company Limited
address:        No. 188, Yuanqu 2nd Rd., Baoshan Township,
address:        Hsinchu County County Taiwan
country:        TW
phone:          +886-3-563-6688
fax-no:         +886-3-563-6688
e-mail:         [email protected]
nic-hdl:        JL5545-TW
changed:        [email protected] 20250106
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

Overlapping Ranges

BGP prefixes that contain 203.66.101.0/24

Range	ASN	Company	Num of IPs
203.66.0.0/16	AS3462	Data Communication Business Group,	65,536

Nearby Ranges

BGP prefixes that overlap with 203.66.0.0/16

Range	ASN	Company	Num of IPs
203.66.0.0/16	AS3462	Data Communication Business Group,	65,536
203.66.100.0/24	AS23675	Chunghwa Telecom Co.,Ltd.	256
203.66.102.0/24	AS23675	Chunghwa Telecom Co.,Ltd.	256
203.66.245.0/24	AS23675	Chunghwa Telecom Co.,Ltd.	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

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Pingable IPs

7 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.66.101.221	AS23675 Taiwan Semiconductor Manufactoring Company, Ltd.	`2.87ms` from Taipei, 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
105.96.105.88	AS36947 Telecom Algeria	`18.25ms` from Algiers, DZ
86.81.105.232	AS1136 KPN B.V.	`2.64ms` from Amsterdam, NL
167.79.92.136	AS19738 Assurant, Inc.	`13.04ms` from Ashburn, US
107.91.235.56	AS20057 AT&T Enterprises, LLC	`19.32ms` from Dallas, US
35.157.56.56	AS16509 Amazon.com, Inc.	`0.13ms` from Frankfurt am Main, DE
208.68.112.56	AS395576 West Liberty Foods	`8.66ms` from Kansas City, US
176.102.161.200	AS56463 OOO "BSCOM"	`11.53ms` from Khabarovsk, RU
107.174.198.40	AS36352 HostPapa	`0.39ms` from Los Angeles, US
90.112.25.232	AS3215 Orange S.A.	`8.19ms` from Marseille, FR
79.9.63.88	AS3269 Telecom Italia S.p.A.	`4.96ms` from Milan, IT
133.175.107.184	AS2519 ARTERIA Networks Corporation	`3.69ms` from Osaka, JP
15.188.223.8	AS16509 Amazon.com, Inc.	`0.14ms` from Paris, FR
2.18.203.56	AS16625 Akamai Technologies, Inc.	`0.09ms` from Santiago, CL
89.69.7.104	AS9141 P4 Sp. z o.o.	`6.29ms` from Warsaw, PL
2.132.198.232	AS9198 JSC Kazakhtelecom	`2.16ms` from Almaty, KZ
181.85.36.232	AS7303 Telecom Argentina S.A.	`0.67ms` from Buenos Aires, AR
178.174.189.8	AS8473 Bahnhof AB	`1.03ms` from Goeteborg, SE
23.243.253.120	AS20001 Charter Communications Inc	`7.76ms` from Los Angeles, US
104.172.13.120	AS20001 Charter Communications Inc	`4.45ms` from Los Angeles, US
80.41.202.136	AS13285 TalkTalk Communications Limited	`1.98ms` from Manchester, GB
119.92.31.152	AS9299 Philippine Long Distance Telephone Company	`1.31ms` from Manila, PH
68.205.197.104	AS33363 Charter Communications, Inc	`8.68ms` from Orlando, US
13.37.107.72	AS16509 Amazon.com, Inc.	`0.54ms` from Paris, FR
27.215.238.104	AS4837 CHINA UNICOM China169 Backbone	`6.73ms` from Qingdao, CN
219.118.127.40	AS18094 Tokyo Cable Network.,INC	`1.32ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f3 203.66.101.247

traceroute to 203.66.101.247 (203.66.101.247): 64 hops max, 52 byte packets

3 [] 203.163.222.39 1.98 ms

4 [AS13335] 162.158.242.90 3.153 ms

5 [AS13335] 162.158.241.33 0.89 ms

6 [AS13335] 162.158.241.46 9.79 ms

7 *

8 *

9 *

10 [AS23675] 203.66.101.247 8.453 ms

Measurement taken from

IPinfo ProbeNet in Taipei, TW

On January 19th 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.

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