203.77.50.0/23

AS24164 · UNION BROADBAND NETWORK

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Summary

Country	Taiwan
Domain	taiwanmobile.com
ASN	AS24164
Parent Range	203.77.32.0/19
Registry	TWNIC
ID	TFN-NET

WHOIS Details

inetnum:        203.77.32.0 - 203.77.63.255
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:        MW1141-TW
tech-c:         MW1141-TW
mnt-by:         MAINT-TW-TWNIC
changed:        nickchang@taiwanmobile.com 20140818
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


person:         Ethan
address:        Taipei Taiwan
country:        TW
e-mail:         ethanchen@taiwanmobile.com
nic-hdl:        MW1141-TW
changed:        hostmaster@twnic.net.tw 20120504
source:         TWNIC

Overlapping Ranges

BGP prefixes that contain 203.77.50.0/23

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
203.77.32.0/19	AS9924	Taiwan Fixed Network CO.,LTD.	8,192

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

Read more

Pingable IPs

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

IP Address	ASN	Details
203.77.51.2	AS24164 UNION BROADBAND NETWORK	`1.51ms` 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
20.55.20.23	AS8075 Microsoft Corporation	`0.39ms` from Ashburn, US
160.1.171.71	AS8987 Amazon Data Services Ireland Ltd	`0.34ms` from Boardman, US
141.2.216.119	AS20633 Johann Wolfgang Goethe-Universitat Frankfurt am Main	`1.06ms` from Frankfurt am Main, DE
190.14.138.71	AS52362 Servicios Innovadores de Comunicación y Entretenimiento, S.A.	`9.02ms` from Guatemala City, GT
45.168.153.7	AS268069 SPACE TELECOMUNICACAO EIRELI	`16.01ms` from Joao Pessoa, BR
94.33.50.151	AS210218 Open Fiber S.P.A.	`10.46ms` from Milan, IT
190.154.118.151	AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)	`0.70ms` from Quito, EC
115.22.9.7	AS4766 Korea Telecom	`6.23ms` from Seoul, KR
222.120.225.71	AS4766 Korea Telecom	`1.35ms` from Seoul, KR
102.156.55.215	AS37705 TOPNET	`2.13ms` from Tunis, TN
78.1.217.7	AS5391 Hrvatski Telekom d.d.	`1.53ms` from Zagreb, HR
84.162.160.7	AS3320 Deutsche Telekom AG	`2.04ms` from Berlin, DE
59.93.247.119	AS9829 National Internet Backbone	`4.67ms` from Chennai, IN
104.198.184.247	AS396982 Google LLC	`0.35ms` from Council Bluffs, US
111.1.29.7	AS56041 China Mobile communications corporation	`7.54ms` from Hangzhou, CN
103.57.98.55	AS150691 Prime Commercial Bank Ltd	`1.46ms` from Kathmandu, NP
89.212.187.215	AS34779 T-2, d.o.o.	`0.93ms` from Ljubljana, SI
104.85.245.199	AS16625 Akamai Technologies, Inc.	`0.53ms` from Los Angeles, US
218.220.245.215	AS9617 JCOM Co., Ltd.	`8.76ms` from Osaka, JP
119.191.147.231	AS4837 CHINA UNICOM China169 Backbone	`9.37ms` from Qingdao, CN
37.59.1.71	AS16276 OVH SAS	`0.18ms` from Roubaix, FR
151.244.131.7	AS215727 NS Worldwide SA	`0.09ms` from Tokyo, JP
216.101.180.71	AS7018 AT&T Enterprises, LLC	`4.73ms` from Atlanta, US
176.63.98.71	AS21334 One Hungary Ltd.	`8.36ms` from Budapest, HU
218.70.91.39	AS4134 CHINANET-BACKBONE	`0.96ms` from Chongqing, CN

Traceroute

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

traceroute -a -n -q1 -m5 203.77.50.63

traceroute to 203.77.50.63 (203.77.50.63): 5 hops max, 52 byte packets

1 [AS15169] 142.251.255.195 240.768 ms

2 [AS15169] 192.178.105.246 241.005 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Milan, IT

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.

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