203.77.38.0/23

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 203.77.38.0/23

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

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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
65.60.115.231	AS14265 TPx Communications	`1.38ms` from Los Angeles, US
76.176.31.183	AS20001 Charter Communications Inc	`6.32ms` from Los Angeles, US
76.170.5.55	AS20001 Charter Communications Inc	`5.02ms` from Los Angeles, US
138.100.122.231	AS766 RedIRIS Autonomous System	`1.44ms` from Madrid, ES
105.16.18.7	AS37100 SEACOM Limited	`0.30ms` from Nairobi, KE
157.185.171.23	AS54994 Meteverse Limited.	`0.61ms` from New York City, US
71.238.81.231	AS7922 Comcast Cable Communications, LLC	`4.97ms` from Portland, US
107.196.170.183	AS7018 AT&T Enterprises, LLC	`5.27ms` from San Jose, US
200.236.238.247	AS28649 Desktop Sigmanet Comunicação Multimídia SA	`2.67ms` from Sao Paulo, BR
179.135.85.87	AS26599 TELEFÔNICA BRASIL S.A	`2.54ms` from São Paulo, BR
85.2.25.39	AS3303 Swisscom (Switzerland) Ltd	`2.28ms` from Zuerich, CH
76.125.158.7	AS7922 Comcast Cable Communications, LLC	`12.83ms` from Ashburn, US
20.69.252.55	AS8075 Microsoft Corporation	`0.29ms` from Boydton, US
87.65.168.231	AS5432 Proximus NV	`3.15ms` from Brussels, BE
125.130.231.55	AS4766 Korea Telecom	`1.48ms` from Incheon, KR
77.72.143.39	AS42358 Insys LLC	`16.34ms` from Moscow, RU
60.99.116.151	AS17676 SoftBank Corp.	`3.70ms` from Osaka, JP
170.231.255.55	AS268976 Weclix Telecom S/A	`3.52ms` from Osasco, BR
67.83.69.247	AS6128 Cablevision Systems Corp.	`8.41ms` from Piscataway, US
183.180.15.23	AS2519 ARTERIA Networks Corporation	`4.23ms` from Tokyo, JP
41.99.105.71	AS36947 Telecom Algeria	`10.38ms` from Valencia, ES
31.164.231.135	AS6730 Sunrise GmbH	`0.83ms` from Zuerich, CH
208.69.31.23	AS36776 Five9 Inc.	`0.84ms` from Atlanta, US
75.207.14.135	AS6167 Verizon Business	`15.36ms` from Atlanta, US
35.88.82.151	AS16509 Amazon.com, Inc.	`0.27ms` from Boardman, US

Traceroute

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

traceroute -a -n -q1 -m5 203.77.38.158

traceroute to 203.77.38.158 (203.77.38.158): 5 hops max, 52 byte packets

1 [AS15169] 142.251.255.195 170.858 ms

2 [AS15169] 192.178.106.174 170.717 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Columbus, US

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.

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