203.77.38.0/23

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 203.77.38.0/23

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

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
144.24.73.215	AS31898 Oracle Corporation	`0.17ms` from Chuncheon, KR
75.81.200.55	AS10796 Charter Communications Inc	`6.35ms` from Cleveland, US
179.135.85.87	AS26599 TELEFÔNICA BRASIL S.A	`2.93ms` from Osasco, BR
23.14.67.247	AS16625 Akamai Technologies, Inc.	`0.09ms` from Santiago, CL
200.201.214.151	AS10733 DC MATRIX INTERNET S/A	`0.76ms` from Sao Paulo, BR
27.115.75.199	AS17621 China Unicom Shanghai network	`2.24ms` from Shanghai, CN
210.166.220.215	AS7678 Prox System Design Inc.	`1.52ms` from Tokyo, JP
90.151.99.151	AS12389 PJSC Rostelecom	`0.93ms` from Yekaterinburg, RU
74.81.189.87	AS31898 Oracle Corporation	`0.24ms` from Ashburn, US
181.120.236.39	AS23201 Telecel S.A.	`5.96ms` from Asuncion, PY
130.111.227.183	AS557 University of Maine System	`8.71ms` from Boston, US
119.52.212.23	AS4837 CHINA UNICOM China169 Backbone	`8.27ms` from Changchun, CN
175.154.99.183	AS4837 CHINA UNICOM China169 Backbone	`10.39ms` from Chengdu, CN
64.204.233.55	AS3257 GTT Communications Inc.	`3.02ms` from Hong Kong, HK
95.70.147.199	AS12735 TurkNet Iletisim Hizmetleri A.S.	`2.16ms` from Istanbul, TR
43.218.248.247	AS16509 Amazon.com, Inc.	`0.10ms` from Jakarta, ID
41.184.181.55	AS29091 ipNX Nigeria Limited	`1.19ms` from Lagos, NG
81.131.199.215	AS2856 British Telecommunications PLC	`8.07ms` from London, GB
81.103.102.55	AS5089 Virgin Media Limited	`6.77ms` from London, GB
65.60.115.231	AS14265 TPx Communications	`1.36ms` from Los Angeles, US
191.92.12.231	AS27831 Colombia Móvil	`13.63ms` from Medellin, CO
77.72.143.39	AS42358 Insys LLC	`16.68ms` from Moscow, RU
91.246.126.103	AS50498 JSC ER-Telecom Holding	`7.08ms` from Moscow, RU
97.69.113.7	AS33363 Charter Communications, Inc	`5.79ms` from Orlando, US
60.100.134.7	AS17676 SoftBank Corp.	`19.43ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -m5 203.77.38.221

traceroute to 203.77.38.221 (203.77.38.221): 5 hops max, 52 byte packets

1 [AS15169] 142.251.255.195 99.928 ms

2 [AS15169] 192.178.106.70 100.242 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Mumbai, IN

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.

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