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

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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	`1.31ms` 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
173.190.14.151	AS7029 Windstream Communications LLC	`9.85ms` from Atlanta, US
65.67.15.151	AS7018 AT&T Enterprises, LLC	`1.36ms` from Houston, US
192.155.79.167	AS18712 Everfast Fiber Networks LLC	`1.24ms` from Kansas City, US
119.156.123.135	AS17557 Pakistan Telecommunication Company Limited	`2.45ms` from Lahore, PK
66.177.225.215	AS7922 Comcast Cable Communications, LLC	`7.92ms` from Orlando, US
3.1.65.119	AS16509 Amazon.com, Inc.	`0.14ms` from Singapore, SG
77.139.190.167	AS12849 Hot-Net internet services Ltd.	`8.32ms` from Tel Aviv, IL
40.113.233.87	AS8075 Microsoft Corporation	`0.34ms` from Des Moines, US
87.187.42.167	AS3320 Deutsche Telekom AG	`6.17ms` from Duesseldorf, DE
123.24.91.215	AS45899 VNPT Corp	`1.51ms` from Hanoi, VN
81.152.109.71	AS2856 British Telecommunications PLC	`2.78ms` from London, GB
81.57.93.87	AS29447 SCALEWAY S.A.S.	`19.43ms` from Milan, IT
46.175.168.199	AS50590 PE "NETBERRY"	`0.88ms` from Minsk, BY
151.31.205.231	AS1267 WIND TRE S.P.A.	`3.60ms` from Rome, IT
73.15.133.87	AS7922 Comcast Cable Communications, LLC	`6.39ms` from San Jose, US
124.153.203.183	AS9694 Seokyung Cable Television Co.. Ltd.	`7.85ms` from Seoul, KR
85.228.110.215	AS8434 Telenor Sverige AB	`2.98ms` from Stockholm, SE
1.1.121.215	AS2519 ARTERIA Networks Corporation	`19.31ms` from Tokyo, JP
98.95.120.135	AS14618 Amazon.com, Inc.	`0.52ms` from Ashburn, US
41.35.134.23	AS8452 TE-AS	`7.30ms` from Cairo, EG
174.3.45.231	AS6327 Shaw Communications	`10.09ms` from Edmonton, CA
79.246.125.23	AS3320 Deutsche Telekom AG	`6.46ms` from Frankfurt am Main, DE
86.31.84.247	AS5089 Virgin Media Limited	`7.17ms` from London, GB
70.93.132.183	AS20001 Charter Communications Inc	`6.47ms` from Los Angeles, US
83.42.126.247	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.76ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -f3 -m7 203.77.50.43

traceroute to 203.77.50.43 (203.77.50.43): 7 hops max, 52 byte packets

3 [AS3356] 171.75.8.28 35.939 ms

4 [AS6939] 184.104.191.108 24.808 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Budapest, HU

On March 13th 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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