203.77.72.0/21

AS24164 · UNION BROADBAND NETWORK

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Summary

Country	Taiwan
Domain	taiwanmobile.com
ASN	AS24164
Registry	TWNIC
ID	TFN-NET

WHOIS Details

inetnum:        203.77.64.0 - 203.77.127.255
netname:        TFN-NET
descr:          Taiwan Fixed Network CO.,LTD.
descr:          15 F., No. 172-1, Sec. 2, Keelung Rd., Da-an Dist.
descr:          Taipei City Taiwan
country:        TW
admin-c:        L369-TW
tech-c:         L369-TW
mnt-by:         MAINT-TW-TWNIC
changed:        nickchang@taiwanmobile.com 20200818
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:         Hans Liu
address:        System Design Div.
address:        12th Floor, No. 88, Yanchang Road, Xinyi District
address:        Taipei  Taiwan
country:        TW
phone:          +886-9-5393-1934
fax-no:
e-mail:         hansliu@taiwanmobile.com
nic-hdl:        L369-TW
changed:        hostmaster@twnic.net 20210602
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 203.77.0.0/16

Range	ASN	Company	Num of IPs
203.77.32.0/19	AS24165	Taiwan Fixed Network CO.,LTD.	8,192
203.77.32.0/19	AS24164	Taiwan Fixed Network CO.,LTD.	8,192
203.77.128.0/19	AS9660	Kannet Limited	8,192
203.77.32.0/19	AS9924	Taiwan Fixed Network CO.,LTD.	8,192
203.77.168.0/21	AS153526	Laos Mobile Communications Sole Co., Ltd	2,048
203.77.177.0/24	AS24558	Internet Hosting Service Provider to the Aditya Birla Group of	256
203.77.179.0/24	AS9942	TPG Internet Pty Ltd.	256
203.77.218.0/24	AS18393	DANA Network	256
203.77.221.0/24	AS18393	Matrix Indo, PT	256
203.77.178.0/24	AS24174	Vikki Digital Bank Limited	256
203.77.176.0/24	AS24509	Xpedite Systems, Electronic document distribution and data messaging service provider.	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
203.77.72.1	AS24164 UNION BROADBAND NETWORK	`1.28ms` from Taipei, TW
203.77.73.65	AS24164 UNION BROADBAND NETWORK	`7.31ms` 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
171.103.177.117	AS7470 TRUE INTERNET Co.,Ltd.	`1.73ms` from Bangkok, TH
194.187.56.101	AS396982 Google LLC	`0.19ms` from Brussels, BE
182.140.4.197	AS4134 CHINANET-BACKBONE	`7.11ms` from Chengdu, CN
129.118.177.149	AS10421 Texas Tech University	`9.79ms` from Dallas, US
93.213.114.133	AS3320 Deutsche Telekom AG	`3.69ms` from Duesseldorf, DE
2.123.133.165	AS5607 Sky UK Limited	`4.75ms` from Erith, GB
185.122.75.21	AS43036 Hostnode AB	`2.46ms` from Falkenberg, SE
113.45.215.5	AS55990 Huawei Cloud Service data center	`2.73ms` from Guangzhou, CN
189.1.196.37	AS136907 HUAWEI CLOUDS	`1.14ms` from Hong Kong, HK
38.173.107.245	AS398823 PEG TECH INC	`0.29ms` from Los Angeles, US
4.8.103.53	AS3356 Level 3 Parent, LLC	`0.78ms` from Minneapolis, US
157.0.104.37	AS4837 CHINA UNICOM China169 Backbone	`9.57ms` from Nanjing, CN
106.155.142.245	AS2516 KDDI CORPORATION	`9.53ms` from Osaka, JP
187.74.197.85	AS27699 TELEFÔNICA BRASIL S.A	`4.27ms` from Sao Paulo, BR
42.180.234.117	AS4837 CHINA UNICOM China169 Backbone	`4.78ms` from Tieling, CN
1.21.101.245	AS59125 FAMILY NET JAPAN INCORPORATED	`1.81ms` from Tokyo, JP
89.186.29.229	AS213804 NOWANET.PL GRP sp. z o.o.	`2.88ms` from Warsaw, PL
124.115.188.21	AS4134 CHINANET-BACKBONE	`5.49ms` from Xi'an, CN
73.193.251.101	AS7922 Comcast Cable Communications, LLC	`8.08ms` from Ashburn, US
110.231.105.117	AS4837 CHINA UNICOM China169 Backbone	`10.62ms` from Beijing, CN
81.247.186.69	AS5432 Proximus NV	`1.15ms` from Brussels, BE
24.168.220.21	AS11426 Charter Communications Inc	`15.59ms` from Charlotte, US
129.229.199.21	AS668 United States Department of Defense (DoD)	`4.18ms` from Chicago, US
66.110.17.5	AS6453 TATA COMMUNICATIONS (AMERICA) INC	`15.90ms` from Dallas, US
75.65.111.117	AS7922 Comcast Cable Communications, LLC	`15.41ms` from Dallas, 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 203.77.73.65

traceroute to 203.77.73.65 (203.77.73.65): 64 hops max, 52 byte packets

3 [AS21859] 23.248.177.214 190.05 ms

4 [AS21859] 23.248.177.161 0.511 ms

5 [AS9924] 60.199.21.246 0.464 ms

6 [AS9924] 60.199.47.226 0.629 ms

7 [AS9924] 61.31.51.86 1.292 ms

8 *

9 *

10 *

11 [AS24164] 203.77.73.65 8.516 ms

Measurement taken from

IPinfo ProbeNet in Taipei, TW

On January 30th 2026

What are IP address ranges?

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