203.77.50.0/23

AS24164 · UNION BROADBAND NETWORK

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

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	`1.07ms` 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
108.142.228.135	AS8075 Microsoft Corporation	`0.29ms` from Amsterdam, NL
97.119.254.183	AS209 CenturyLink Communications, LLC	`11.04ms` from Chicago, US
3.68.140.7	AS16509 Amazon.com, Inc.	`0.15ms` from Frankfurt am Main, DE
5.254.6.183	AS3223 Voxility LLP	`0.40ms` from London, GB
130.132.176.55	AS29 Yale University	`4.69ms` from New York City, US
133.123.169.23	AS7522 STNet, Incorporated	`7.05ms` from Osaka, JP
70.56.190.167	AS209 CenturyLink Communications, LLC	`2.42ms` from Phoenix, US
18.208.205.87	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
90.128.23.7	AS1257 Tele2 Sverige AB	`17.13ms` from Riga, LV
151.75.230.247	AS1267 WIND TRE S.P.A.	`6.19ms` from Rome, IT
159.65.143.151	AS14061 DigitalOcean, LLC	`0.24ms` from Singapore, SG
4.194.199.151	AS8075 Microsoft Corporation	`0.51ms` from Singapore, SG
61.184.137.71	AS4134 CHINANET-BACKBONE	`5.04ms` from Wuhan, CN
20.56.76.151	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
212.200.144.87	AS8400 TELEKOM SRBIJA a.d.	`0.81ms` from Belgrade, RS
81.240.81.71	AS5432 Proximus NV	`3.86ms` from Brussels, BE
24.211.127.151	AS11426 Charter Communications Inc	`11.14ms` from Charlotte, US
99.88.48.103	AS7018 AT&T Enterprises, LLC	`8.37ms` from Chicago, US
198.244.212.119	AS16276 OVH SAS	`0.06ms` from Erith, GB
111.1.29.7	AS56041 China Mobile communications corporation	`8.19ms` from Hangzhou, CN
175.239.109.135	AS4766 Korea Telecom	`7.03ms` from Incheon, KR
217.43.39.39	AS2856 British Telecommunications PLC	`6.61ms` from London, GB
14.94.88.7	AS4766 Korea Telecom	`1.51ms` from Seoul, KR
129.56.90.23	AS327952 NATCOM Development and Investment Limited	`0.07ms` from Ashburn, US
189.5.126.183	AS28573 Claro NXT Telecomunicacoes Ltda	`9.20ms` from Brasilia, BR

Traceroute

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

traceroute -a -n -q1 203.77.51.2

traceroute to 203.77.51.2 (203.77.51.2): 64 hops max, 52 byte packets

1 [AS15169] 142.251.255.195 229.797 ms

2 [AS15169] 192.178.106.174 230.037 ms

3 *

4 *

5 *

6 *

7 [AS24164] 203.77.51.2 205.578 ms

Measurement taken from

IPinfo ProbeNet in Brussels, BE

On January 30th 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