123.50.48.0/21

AS18429 · Extra-Lan Technologies Co., LTD

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Summary

Country	Taiwan
Domain	extra-lan.com.tw
ASN	AS18429
Registry	APNIC
ID	ELNET-NET

WHOIS Details

inetnum:        123.50.32.0 - 123.50.63.255
netname:        ELNET-NET
descr:          Extra-Lan Technologies Co., LTD
descr:          2Fl., No. 311, Sec. 1, Beishin Rd.,
descr:          Shindian City
descr:          Taipei Country Taiwan 231
country:        TW
admin-c:        SJ923-AP
tech-c:         WL699-AP
abuse-c:        AT939-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-TW-TWNIC
mnt-lower:      MAINT-TW-TWNIC
mnt-routes:     MAINT-TW-TWNIC
mnt-irt:        IRT-CGNET-TW
last-modified:  2025-11-07T01:35:54Z
source:         APNIC

irt:            IRT-CGNET-TW
address:        CABLE GIANT CATV. CO., LTD.
address:        2F., No.311, Sec. 1, Beixin Rd., Xindian Dist.
address:        New Taipei City
phone:          +886-2-2917-3528 ext. 800
e-mail:         alex@fttx.tw
abuse-mailbox:  alex@fttx.tw
admin-c:        TR300-AP
tech-c:         TR300-AP
remarks:        (oid:CGNET)
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-06T07:13:26Z
source:         APNIC
auth:           # Filtered

role:           ABUSE TWNICAP
country:        ZZ
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone:          +000000000
e-mail:         hostmaster@twnic.tw
admin-c:        TWA2-AP
tech-c:         TWA2-AP
nic-hdl:        AT939-AP
remarks:        Generated from irt object IRT-TWNIC-AP
remarks:        hostmaster@twnic.tw was validated on 2025-05-23
abuse-mailbox:  hostmaster@twnic.tw
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-23T00:02:10Z
source:         APNIC

person:         Su Joseph
address:        Extra-Lan Technologies Co., LTD
address:        2Fl., No. 311,  Sec. 1, Beishin Rd., Shindian City
address:        Taipei Taiwan
country:        TW
phone:          +886-2-2913-3528 ext 800
phone:          +886-2-2913-3939
e-mail:         joseph@extra-lan.com.tw
nic-hdl:        SJ923-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2008-09-04T07:29:24Z
source:         APNIC

person:         Wu Leon
address:        Extra-Lan Technologies Co., LTD
address:        2Fl., No. 311,  Sec. 1, Beishin Rd., Shindian City
address:        Taipei Taiwan
country:        TW
phone:          +886-2-2913-3528 ext 200
fax-no:         +886-2-2917-3866
e-mail:         leon@extra-lan.com.tw
nic-hdl:        WL699-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2008-09-04T07:30:18Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 123.50.0.0/16

Range	ASN	Company	Num of IPs
123.50.64.0/18	AS9471	ONATI	16,384
123.50.0.0/19	AS10013	FreeBit Co., Ltd.	8,192
123.50.192.0/19	AS2514	INTERLINK Co.,LTD.	8,192
123.50.240.0/20	AS9614	Oita Cable Telecom Co.,Ltd.	4,096
123.50.224.0/20	AS9614	Oita Cable Telecom Co.,Ltd.	4,096
123.50.60.0/24	AS18429	CABLE GIANT CATV. CO., LTD.	256
123.50.58.0/24	AS18429	CABLE GIANT CATV. CO., LTD.	256
123.50.59.0/24	AS18429	CABLE GIANT CATV. CO., LTD.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
123.50.55.1	AS18429 Extra-Lan Technologies Co., LTD	`0.61ms` 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
65.48.124.165	AS40911 L2Networks Corp.	`10.24ms` from Atlanta, US
23.97.14.133	AS8075 Microsoft Corporation	`0.66ms` from Boydton, US
109.58.191.149	AS44034 Hi3G Access AB	`5.81ms` from Copenhagen, DK
124.71.73.149	AS55990 Huawei Cloud Service data center	`1.74ms` from Guangzhou, CN
136.50.72.69	AS16591 Google Fiber Inc.	`7.12ms` from Houston, US
202.111.213.21	AS4809 China Telecom Next Generation Carrier Network	`5.10ms` from Huai'an, CN
102.33.31.21	AS327782 Metrofibre Networx	`0.39ms` from Johannesburg, ZA
86.160.1.85	AS2856 British Telecommunications PLC	`3.26ms` from London, GB
176.35.89.117	AS5413 Wavenet Limited	`2.60ms` from London, GB
46.65.58.53	AS5607 Sky UK Limited	`5.61ms` from London, GB
6.11.244.21	AS668 United States Department of Defense (DoD)	`1.76ms` from Los Angeles, US
4.31.219.133	AS3356 Level 3 Parent, LLC	`0.34ms` from Miami, US
79.137.188.53	AS12695 LLC Digital Network	`1.14ms` from Moscow, RU
218.23.102.149	AS4134 CHINANET-BACKBONE	`7.99ms` from Nanchang, CN
179.96.248.69	AS28220 Alares Cabo Servicos de Telecomunicacoes S.A.	`4.44ms` from Osasco, BR
72.201.17.37	AS22773 Cox Communications Inc.	`5.73ms` from Phoenix, US
80.239.102.181	AS25400 Telia Norge AS	`7.68ms` from Sandefjord, NO
211.193.178.85	AS4766 Korea Telecom	`7.85ms` from Seoul, KR
124.74.8.181	AS4812 China Telecom (Group)	`2.25ms` from Shanghai, CN
1.162.166.133	AS3462 Data Communication Business Group	`1.03ms` from Taipei, TW
59.147.145.21	AS2527 Sony Network Communications Inc.	`6.49ms` from Tokyo, JP
172.237.13.165	AS63949 Akamai Connected Cloud	`0.24ms` from Tokyo, JP
178.46.146.197	AS12389 PJSC Rostelecom	`5.69ms` from Yekaterinburg, RU
108.94.144.101	AS7018 AT&T Enterprises, LLC	`12.22ms` from Atlanta, US
94.110.75.213	AS47377 Orange Belgium SA	`8.15ms` from Brussels, BE

Traceroute

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

traceroute -a -n -q1 -f2 -m7 123.50.48.131

traceroute to 123.50.48.131 (123.50.48.131): 7 hops max, 52 byte packets

2 [] 146.70.0.46 13.67 ms

3 [] 37.120.220.135 2.729 ms

4 [] 146.70.1.221 2.595 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

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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